MC
74e3_03b0
D-allose⟶α-D-allose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-allose. Which one of the following Haworth projections is of the monosaccharide α-D-allose? | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC 2b14_d41b
L-galacto-2-heptulose⟶β-L-galacto-2-heptulose
| . | . | CH2OH |
| . | ==O |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-galacto-2-heptulose. Which one of the following Haworth projections is of the monosaccharide β-L-galacto-2-heptulose? | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect
MC 3934_6ded
D-talose⟶β-D-talose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-talose. Which one of the following Haworth projections is of the monosaccharide β-D-talose? | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect
MC 52c7_4a54
D-galacto-2-heptulose⟶α-D-galacto-2-heptulose
| . | . | CH2OH |
| . | ==O |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-galacto-2-heptulose. Which one of the following Haworth projections is of the monosaccharide α-D-galacto-2-heptulose? | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect
MC 8120_3fe0
D-mannose⟶β-D-mannose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-mannose. Which one of the following Haworth projections is of the monosaccharide β-D-mannose? | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect
MC 27e4_d4a0
L-allo-2-heptulose⟶α-L-allo-2-heptulose
| . | . | CH2OH |
| . | ==O |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-allo-2-heptulose. Which one of the following Haworth projections is of the monosaccharide α-L-allo-2-heptulose? | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct | H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC 96e4_1ea3
D-gluco-2-heptulose⟶β-D-gluco-2-heptulose
| . | . | CH2OH |
| . | ==O |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-gluco-2-heptulose. Which one of the following Haworth projections is of the monosaccharide β-D-gluco-2-heptulose? | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct
MC 07f5_f6ab
D-galactose⟶β-D-galactose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-galactose. Which one of the following Haworth projections is of the monosaccharide β-D-galactose? | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct | HO | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect
MC afe2_9fb8
L-altro-2-heptulose⟶α-L-altro-2-heptulose
| . | . | CH2OH |
| . | ==O |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-altro-2-heptulose. Which one of the following Haworth projections is of the monosaccharide α-L-altro-2-heptulose? | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC 97cf_9952
D-galactose⟶α-D-galactose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-galactose. Which one of the following Haworth projections is of the monosaccharide α-D-galactose? | HO | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect
MC 0548_8010
D-ido-2-heptulose⟶α-D-ido-2-heptulose
| . | . | CH2OH |
| . | ==O |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-ido-2-heptulose. Which one of the following Haworth projections is of the monosaccharide α-D-ido-2-heptulose? | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC 4119_b087
D-glucose⟶α-D-glucose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-glucose. Which one of the following Haworth projections is of the monosaccharide α-D-glucose? | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect
MC 54e2_58e4
D-talose⟶α-D-talose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-talose. Which one of the following Haworth projections is of the monosaccharide α-D-talose? | HO | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC 9c0e_60f1
D-altrose⟶α-D-altrose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-altrose. Which one of the following Haworth projections is of the monosaccharide α-D-altrose? | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect
MC 2385_b08a
D-gluco-2-heptulose⟶α-D-gluco-2-heptulose
| . | . | CH2OH |
| . | ==O |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-gluco-2-heptulose. Which one of the following Haworth projections is of the monosaccharide α-D-gluco-2-heptulose? | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct
MC 00fa_e9e5
D-gulo-2-heptulose⟶β-D-gulo-2-heptulose
| . | . | CH2OH |
| . | ==O |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-gulo-2-heptulose. Which one of the following Haworth projections is of the monosaccharide β-D-gulo-2-heptulose? | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC 4f55_b285
D-gulose⟶β-D-gulose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-gulose. Which one of the following Haworth projections is of the monosaccharide β-D-gulose? | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC df05_f733
L-altrose⟶α-L-altrose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-altrose. Which one of the following Haworth projections is of the monosaccharide α-L-altrose? | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect
MC 2ee2_4f40
D-allo-2-heptulose⟶α-D-allo-2-heptulose
| . | . | CH2OH |
| . | ==O |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-allo-2-heptulose. Which one of the following Haworth projections is of the monosaccharide α-D-allo-2-heptulose? | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect
MC 9bf7_84bd
L-gulo-2-heptulose⟶α-L-gulo-2-heptulose
| . | . | CH2OH |
| . | ==O |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-gulo-2-heptulose. Which one of the following Haworth projections is of the monosaccharide α-L-gulo-2-heptulose? | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect
MC 0b9e_4c4a
L-gulo-2-heptulose⟶β-L-gulo-2-heptulose
| . | . | CH2OH |
| . | ==O |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-gulo-2-heptulose. Which one of the following Haworth projections is of the monosaccharide β-L-gulo-2-heptulose? | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect
MC 1fda_9b31
D-mann-2-heptulose⟶α-D-mann-2-heptulose
| . | . | CH2OH |
| . | ==O |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-mann-2-heptulose. Which one of the following Haworth projections is of the monosaccharide α-D-mann-2-heptulose? | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect
MC 540f_3171
L-galactose⟶α-L-galactose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-galactose. Which one of the following Haworth projections is of the monosaccharide α-L-galactose? | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct
MC 9f48_9cf0
L-talo-2-heptulose⟶β-L-talo-2-heptulose
| . | . | CH2OH |
| . | ==O |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-talo-2-heptulose. Which one of the following Haworth projections is of the monosaccharide β-L-talo-2-heptulose? | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC 04c8_4eaa
D-ido-2-heptulose⟶β-D-ido-2-heptulose
| . | . | CH2OH |
| . | ==O |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-ido-2-heptulose. Which one of the following Haworth projections is of the monosaccharide β-D-ido-2-heptulose? | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect
MC e0c4_2155
D-mann-2-heptulose⟶β-D-mann-2-heptulose
| . | . | CH2OH |
| . | ==O |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-mann-2-heptulose. Which one of the following Haworth projections is of the monosaccharide β-D-mann-2-heptulose? | H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect
MC bdd5_b0f6
L-idose⟶α-L-idose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-idose. Which one of the following Haworth projections is of the monosaccharide α-L-idose? | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect
MC 92f1_765d
D-gulo-2-heptulose⟶α-D-gulo-2-heptulose
| . | . | CH2OH |
| . | ==O |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-gulo-2-heptulose. Which one of the following Haworth projections is of the monosaccharide α-D-gulo-2-heptulose? | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect
MC 6965_7985
D-allo-2-heptulose⟶β-D-allo-2-heptulose
| . | . | CH2OH |
| . | ==O |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-allo-2-heptulose. Which one of the following Haworth projections is of the monosaccharide β-D-allo-2-heptulose? | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC 4fb4_0ec0
D-idose⟶β-D-idose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-idose. Which one of the following Haworth projections is of the monosaccharide β-D-idose? | HO | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect
MC 8b69_cc8d
L-galacto-2-heptulose⟶α-L-galacto-2-heptulose
| . | . | CH2OH |
| . | ==O |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-galacto-2-heptulose. Which one of the following Haworth projections is of the monosaccharide α-L-galacto-2-heptulose? | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect
MC 0212_7f8d
L-glucose⟶α-L-glucose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-glucose. Which one of the following Haworth projections is of the monosaccharide α-L-glucose? | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct
MC ef61_3c66
L-gluco-2-heptulose⟶α-L-gluco-2-heptulose
| . | . | CH2OH |
| . | ==O |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-gluco-2-heptulose. Which one of the following Haworth projections is of the monosaccharide α-L-gluco-2-heptulose? | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect
MC e820_87a7
L-idose⟶β-L-idose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-idose. Which one of the following Haworth projections is of the monosaccharide β-L-idose? | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC 4be5_0637
D-allose⟶β-D-allose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-allose. Which one of the following Haworth projections is of the monosaccharide β-D-allose? | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect
MC 5732_3262
L-manno-2-heptulose⟶β-L-manno-2-heptulose
| . | . | CH2OH |
| . | ==O |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-manno-2-heptulose. Which one of the following Haworth projections is of the monosaccharide β-L-manno-2-heptulose? | H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct
MC b88a_66ec
L-mannose⟶β-L-mannose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-mannose. Which one of the following Haworth projections is of the monosaccharide β-L-mannose? | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC 03f3_c372
D-talo-2-heptulose⟶α-D-talo-2-heptulose
| . | . | CH2OH |
| . | ==O |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-talo-2-heptulose. Which one of the following Haworth projections is of the monosaccharide α-D-talo-2-heptulose? | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect
MC 6201_4ae0
L-allo-2-heptulose⟶β-L-allo-2-heptulose
| . | . | CH2OH |
| . | ==O |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-allo-2-heptulose. Which one of the following Haworth projections is of the monosaccharide β-L-allo-2-heptulose? | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect
MC 699e_773d
D-altrose⟶β-D-altrose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-altrose. Which one of the following Haworth projections is of the monosaccharide β-D-altrose? | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect
MC fbc1_1ca1
L-manno-2-heptulose⟶α-L-manno-2-heptulose
| . | . | CH2OH |
| . | ==O |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-manno-2-heptulose. Which one of the following Haworth projections is of the monosaccharide α-L-manno-2-heptulose? | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC 0af5_f167
L-talo-2-heptulose⟶α-L-talo-2-heptulose
| . | . | CH2OH |
| . | ==O |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-talo-2-heptulose. Which one of the following Haworth projections is of the monosaccharide α-L-talo-2-heptulose? | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC 5034_cb11
L-altrose⟶β-L-altrose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-altrose. Which one of the following Haworth projections is of the monosaccharide β-L-altrose? | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect
MC 3db4_497b
L-talose⟶β-L-talose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-talose. Which one of the following Haworth projections is of the monosaccharide β-L-talose? | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect
MC 20f8_6446
D-galacto-2-heptulose⟶β-D-galacto-2-heptulose
| . | . | CH2OH |
| . | ==O |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-galacto-2-heptulose. Which one of the following Haworth projections is of the monosaccharide β-D-galacto-2-heptulose? | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct
MC 5a1b_b772
D-altro-2-heptulose⟶β-D-altro-2-heptulose
| . | . | CH2OH |
| . | ==O |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-altro-2-heptulose. Which one of the following Haworth projections is of the monosaccharide β-D-altro-2-heptulose? | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct
MC 4bd5_817c
L-gulose⟶β-L-gulose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-gulose. Which one of the following Haworth projections is of the monosaccharide β-L-gulose? | HO | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct
MC 3183_8d66
L-ido-2-heptulose⟶β-L-ido-2-heptulose
| . | . | CH2OH |
| . | ==O |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-ido-2-heptulose. Which one of the following Haworth projections is of the monosaccharide β-L-ido-2-heptulose? | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect
MC acd3_b2c8
D-gulose⟶α-D-gulose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-gulose. Which one of the following Haworth projections is of the monosaccharide α-D-gulose? | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct | HO | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect
MC 75cf_547d
L-glucose⟶β-L-glucose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-glucose. Which one of the following Haworth projections is of the monosaccharide β-L-glucose? | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect
MC 3481_2cd8
D-idose⟶α-D-idose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-idose. Which one of the following Haworth projections is of the monosaccharide α-D-idose? | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect
MC 4f65_75a9
L-allose⟶β-L-allose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-allose. Which one of the following Haworth projections is of the monosaccharide β-L-allose? | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct
MC fdd2_dbbc
L-mannose⟶α-L-mannose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-mannose. Which one of the following Haworth projections is of the monosaccharide α-L-mannose? | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect
MC bed9_8b83
D-mannose⟶α-D-mannose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-mannose. Which one of the following Haworth projections is of the monosaccharide α-D-mannose? | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect
MC f47b_271c
L-galactose⟶β-L-galactose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-galactose. Which one of the following Haworth projections is of the monosaccharide β-L-galactose? | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect
MC 942c_ec20
D-talo-2-heptulose⟶β-D-talo-2-heptulose
| . | . | CH2OH |
| . | ==O |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-talo-2-heptulose. Which one of the following Haworth projections is of the monosaccharide β-D-talo-2-heptulose? | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect
MC 6022_85da
L-ido-2-heptulose⟶α-L-ido-2-heptulose
| . | . | CH2OH |
| . | ==O |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-ido-2-heptulose. Which one of the following Haworth projections is of the monosaccharide α-L-ido-2-heptulose? | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC 4c65_9eee
D-glucose⟶β-D-glucose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-glucose. Which one of the following Haworth projections is of the monosaccharide β-D-glucose? | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect
MC a38d_78d1
L-gluco-2-heptulose⟶β-L-gluco-2-heptulose
| . | . | CH2OH |
| . | ==O |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-gluco-2-heptulose. Which one of the following Haworth projections is of the monosaccharide β-L-gluco-2-heptulose? | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect
MC 6306_ba76
D-altro-2-heptulose⟶α-D-altro-2-heptulose
| . | . | CH2OH |
| . | ==O |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide D-altro-2-heptulose. Which one of the following Haworth projections is of the monosaccharide α-D-altro-2-heptulose? | H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect
MC e3a9_33ce
L-allose⟶α-L-allose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-allose. Which one of the following Haworth projections is of the monosaccharide α-L-allose? | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect
MC 6f72_35a6
L-altro-2-heptulose⟶β-L-altro-2-heptulose
| . | . | CH2OH |
| . | ==O |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-altro-2-heptulose. Which one of the following Haworth projections is of the monosaccharide β-L-altro-2-heptulose? | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct
MC c3a8_ff9e
L-talose⟶α-L-talose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-talose. Which one of the following Haworth projections is of the monosaccharide α-L-talose? | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC 3b99_da74
L-gulose⟶α-L-gulose
| H | . | O |
| . | \ | // | . |
| . | . | C | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| H | . | . | . | . | OH |
| . | . | . | . |
| HO | . | . | . | . | H |
| . | . | . | . |
| . | . | CH2OH |
Above is a Fischer projection of the monosaccharide L-gulose. Which one of the following Haworth projections is of the monosaccharide α-L-gulose? | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect