MC 247c_ef58
β-D-allo-2-heptulose
| H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Above is a Haworth projection of the monosaccharide β-D-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 | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct
MC cfbd_9bbd
α-D-talose
| HO | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Above is a Haworth projection of the monosaccharide α-D-talose. Which one of the following Haworth projections is of the monosaccharide α-L-talose?
| H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | 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 | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct
MC dc4d_4520
α-D-allo-2-heptulose
| H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Above is a Haworth projection of the monosaccharide α-D-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 | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct
MC c2e7_ac9a
β-D-talo-2-heptulose
| HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Above is a Haworth projection of the monosaccharide β-D-talo-2-heptulose. Which one of the following Haworth projections is of the monosaccharide β-L-talo-2-heptulose?
| 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 | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect
MC ac82_1f40
α-D-gluco-2-heptulose
| H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Above is a Haworth projection of the monosaccharide α-D-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 | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC a7b8_e106
α-D-xylose
| CH2OH | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | H | . | HO | . | . |
Above is a Haworth projection of the monosaccharide α-D-xylose. Which one of the following Haworth projections is of the monosaccharide α-L-xylose?
| CH2OH | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | H |
| . | . | OH | . | H | . | . |
Incorrect | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | H |
| . | . | OH | . | H | . | . |
Incorrect | H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | HO | . | . |
Incorrect | CH2OH | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | H |
| . | . | OH | . | HO | . | . |
Incorrect | H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | H | . | . |
Correct
MC 4423_e227
β-D-galacto-2-heptulose
| HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Above is a Haworth projection of the monosaccharide β-D-galacto-2-heptulose. Which one of the following Haworth projections is of the monosaccharide β-L-galacto-2-heptulose?
| HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC 32c1_7e92
β-D-idose
| HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Above is a Haworth projection of the monosaccharide β-D-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 | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct
MC cb0e_a75c
β-D-talose
| HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Above is a Haworth projection of the monosaccharide β-D-talose. Which one of the following Haworth projections is of the monosaccharide β-L-talose?
| HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | 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 | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC 6b91_9aa4
α-D-idose
| HO | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Above is a Haworth projection of the monosaccharide α-D-idose. Which one of the following Haworth projections is of the monosaccharide α-L-idose?
| H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | 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 | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect
MC 750c_d6cc
α-D-mannose
| H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Above is a Haworth projection of the monosaccharide α-D-mannose. Which one of the following Haworth projections is of the monosaccharide α-L-mannose?
| HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect
MC 6a6b_9393
α-D-altro-2-heptulose
| H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Above is a Haworth projection of the monosaccharide α-D-altro-2-heptulose. Which one of the following Haworth projections is of the monosaccharide α-L-altro-2-heptulose?
| H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC 4222_b615
β-D-gulo-2-heptulose
| HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Above is a Haworth projection of the monosaccharide β-D-gulo-2-heptulose. Which one of the following Haworth projections is of the monosaccharide β-L-gulo-2-heptulose?
| 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 | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct
MC ade1_31a0
β-D-gulose
| HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Above is a Haworth projection of the monosaccharide β-D-gulose. Which one of the following Haworth projections is of the monosaccharide β-L-gulose?
| H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect
MC 4040_0dbd
α-D-galactose
| HO | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Above is a Haworth projection of the monosaccharide α-D-galactose. Which one of the following Haworth projections is of the monosaccharide α-L-galactose?
| H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect
MC dfbd_f560
α-D-ribose
| CH2OH | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | OH | . | HO | . | . |
Above is a Haworth projection of the monosaccharide α-D-ribose. Which one of the following Haworth projections is of the monosaccharide α-L-ribose?
| H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | H |
| . | . | H | . | H | . | . |
Incorrect | H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | HO | . | . |
Incorrect | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | H |
| . | . | H | . | HO | . | . |
Incorrect | CH2OH | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | H |
| . | . | OH | . | H | . | . |
Incorrect | H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | H | . | H | . | . |
Correct
MC 2e96_9b02
β-D-arabinose
| CH2OH | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | H |
| . | . | OH | . | H | . | . |
Above is a Haworth projection of the monosaccharide β-D-arabinose. Which one of the following Haworth projections is of the monosaccharide β-L-arabinose?
| H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | H | . | H | . | . |
Incorrect | H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | H | . | HO | . | . |
Incorrect | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | H |
| . | . | H | . | HO | . | . |
Correct | CH2OH | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | H | . | H | . | . |
Incorrect | CH2OH | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | H | . | HO | . | . |
Incorrect
MC 4db4_0a74
α-D-mann-2-heptulose
| H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Above is a Haworth projection of the monosaccharide α-D-mann-2-heptulose. Which one of the following Haworth projections is of the monosaccharide α-L-mann-2-heptulose?
| 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 | . | . | . |
Correct | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect
MC 1639_86e3
α-D-galacto-2-heptulose
| HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Above is a Haworth projection of the monosaccharide α-D-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 | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect
MC d52c_8a84
α-D-altrose
| H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Above is a Haworth projection of the monosaccharide α-D-altrose. Which one of the following Haworth projections is of the monosaccharide α-L-altrose?
| HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
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
MC 79c1_0b66
β-D-tagatose
| CH2OH | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | CH2OH |
| . | . | OH | . | HO | . | . |
Above is a Haworth projection of the monosaccharide β-D-tagatose. Which one of the following Haworth projections is of the monosaccharide β-L-tagatose?
| CH2OH | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | H | . | H | . | . |
Incorrect | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | CH2OH |
| . | . | H | . | H | . | . |
Incorrect | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | CH2OH |
| . | . | OH | . | H | . | . |
Incorrect | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | CH2OH |
| . | . | OH | . | HO | . | . |
Incorrect | H | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | H | . | H | . | . |
Correct
MC 40b4_aa0b
α-D-gulose
| HO | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Above is a Haworth projection of the monosaccharide α-D-gulose. Which one of the following Haworth projections is of the monosaccharide α-L-gulose?
| H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | 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 | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct | HO | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC c090_4e6f
α-D-arabinose
| CH2OH | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | OH | . | H | . | . |
Above is a Haworth projection of the monosaccharide α-D-arabinose. Which one of the following Haworth projections is of the monosaccharide α-L-arabinose?
| H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | H | . | HO | . | . |
Incorrect | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | H |
| . | . | OH | . | H | . | . |
Incorrect | H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | H | . | . |
Incorrect | CH2OH | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | H |
| . | . | OH | . | HO | . | . |
Incorrect | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | H |
| . | . | H | . | HO | . | . |
Correct
MC 154c_0dda
α-D-gulo-2-heptulose
| HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Above is a Haworth projection of the monosaccharide α-D-gulo-2-heptulose. Which one of the following Haworth projections is of the monosaccharide α-L-gulo-2-heptulose?
| H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect
MC ec7c_418f
β-D-altrose
| H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Above is a Haworth projection of the monosaccharide β-D-altrose. Which one of the following Haworth projections is of the monosaccharide β-L-altrose?
| H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | 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 | . | . | . |
Correct
MC 1854_59fb
α-D-sorbose
| CH2OH | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | H | . | HO | . | . |
Above is a Haworth projection of the monosaccharide α-D-sorbose. Which one of the following Haworth projections is of the monosaccharide α-L-sorbose?
| CH2OH | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | H | . | H | . | . |
Incorrect | CH2OH | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | OH | . | HO | . | . |
Incorrect | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | CH2OH |
| . | . | OH | . | H | . | . |
Incorrect | H | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | H | . | HO | . | . |
Incorrect | H | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | H | . | . |
Correct
MC b246_4747
α-D-talo-2-heptulose
| HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Above is a Haworth projection of the monosaccharide α-D-talo-2-heptulose. Which one of the following Haworth projections is of the monosaccharide α-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 | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect
MC 941c_c68d
β-D-gluco-2-heptulose
| H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Above is a Haworth projection of the monosaccharide β-D-gluco-2-heptulose. Which one of the following Haworth projections is of the monosaccharide β-L-gluco-2-heptulose?
| HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC ce53_c433
β-D-mannose
| H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Above is a Haworth projection of the monosaccharide β-D-mannose. Which one of the following Haworth projections is of the monosaccharide β-L-mannose?
| HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct
MC 5118_cd2a
β-D-lyxose
| CH2OH | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | H |
| . | . | H | . | H | . | . |
Above is a Haworth projection of the monosaccharide β-D-lyxose. Which one of the following Haworth projections is of the monosaccharide β-L-lyxose?
| H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | H |
| . | . | OH | . | HO | . | . |
Incorrect | H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | HO | . | . |
Correct | H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | H | . | HO | . | . |
Incorrect | CH2OH | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | H |
| . | . | OH | . | HO | . | . |
Incorrect | H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | H | . | H | . | . |
Incorrect
MC 70b8_e1b7
β-D-ribose
| CH2OH | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | H |
| . | . | OH | . | HO | . | . |
Above is a Haworth projection of the monosaccharide β-D-ribose. Which one of the following Haworth projections is of the monosaccharide β-L-ribose?
| H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | HO | . | . |
Incorrect | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | H |
| . | . | H | . | H | . | . |
Incorrect | CH2OH | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | OH | . | H | . | . |
Incorrect | H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | H | . | . |
Incorrect | H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | H | . | H | . | . |
Correct
MC ae52_8fee
β-D-galactose
| HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Above is a Haworth projection of the monosaccharide β-D-galactose. Which one of the following Haworth projections is of the monosaccharide β-L-galactose?
| 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 | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct
MC c427_626b
α-D-ido-2-heptulose
| HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Above is a Haworth projection of the monosaccharide α-D-ido-2-heptulose. Which one of the following Haworth projections is of the monosaccharide α-L-ido-2-heptulose?
| HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct | H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect
MC 98de_bd6c
β-D-altro-2-heptulose
| H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Above is a Haworth projection of the monosaccharide β-D-altro-2-heptulose. Which one of the following Haworth projections is of the monosaccharide β-L-altro-2-heptulose?
| H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC 5866_cc25
β-D-psicose
| CH2OH | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | CH2OH |
| . | . | H | . | H | . | . |
Above is a Haworth projection of the monosaccharide β-D-psicose. Which one of the following Haworth projections is of the monosaccharide β-L-psicose?
| H | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | HO | . | . |
Incorrect | H | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | H | . | HO | . | . |
Incorrect | H | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | H | . | . |
Incorrect | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | CH2OH |
| . | . | OH | . | HO | . | . |
Correct | H | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | H | . | H | . | . |
Incorrect
MC 94b4_3786
β-D-ido-2-heptulose
| HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Above is a Haworth projection of the monosaccharide β-D-ido-2-heptulose. Which one of the following Haworth projections is of the monosaccharide β-L-ido-2-heptulose?
| H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct | H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC ccb4_10c0
α-D-tagatose
| CH2OH | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | OH | . | HO | . | . |
Above is a Haworth projection of the monosaccharide α-D-tagatose. Which one of the following Haworth projections is of the monosaccharide α-L-tagatose?
| CH2OH | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | CH2OH |
| . | . | H | . | HO | . | . |
Incorrect | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | CH2OH |
| . | . | OH | . | H | . | . |
Incorrect | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | CH2OH |
| . | . | H | . | H | . | . |
Incorrect | H | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | H | . | H | . | . |
Correct | CH2OH | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | H | . | H | . | . |
Incorrect
MC 21e9_1bc2
β-D-sorbose
| CH2OH | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | CH2OH |
| . | . | H | . | HO | . | . |
Above is a Haworth projection of the monosaccharide β-D-sorbose. Which one of the following Haworth projections is of the monosaccharide β-L-sorbose?
| H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | CH2OH |
| . | . | OH | . | H | . | . |
Incorrect | H | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | H | . | . |
Correct | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | CH2OH |
| . | . | OH | . | HO | . | . |
Incorrect | CH2OH | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | OH | . | HO | . | . |
Incorrect | H | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | HO | . | . |
Incorrect
MC 150c_618c
α-D-lyxose
| CH2OH | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | H | . | H | . | . |
Above is a Haworth projection of the monosaccharide α-D-lyxose. Which one of the following Haworth projections is of the monosaccharide α-L-lyxose?
| H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | HO | . | . |
Incorrect | H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | H | . | . |
Incorrect | CH2OH | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | OH | . | HO | . | . |
Incorrect | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | H |
| . | . | OH | . | HO | . | . |
Correct | CH2OH | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | OH | . | H | . | . |
Incorrect
MC add3_69e7
β-D-mann-2-heptulose
| H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Above is a Haworth projection of the monosaccharide β-D-mann-2-heptulose. Which one of the following Haworth projections is of the monosaccharide β-L-mann-2-heptulose?
| H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct | H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect
MC a4f0_1220
α-D-psicose
| CH2OH | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | H | . | H | . | . |
Above is a Haworth projection of the monosaccharide α-D-psicose. Which one of the following Haworth projections is of the monosaccharide α-L-psicose?
| H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | CH2OH |
| . | . | OH | . | HO | . | . |
Incorrect | H | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | HO | . | . |
Correct | CH2OH | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | CH2OH |
| . | . | OH | . | HO | . | . |
Incorrect | CH2OH | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | OH | . | HO | . | . |
Incorrect | H | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | H | . | . |
Incorrect
MC 43b0_b969
α-D-allose
| H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Above is a Haworth projection of the monosaccharide α-D-allose. Which one of the following Haworth projections is of the monosaccharide α-L-allose?
| HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
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 | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect
MC b8ea_a311
β-D-xylose
| CH2OH | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | H |
| . | . | H | . | HO | . | . |
Above is a Haworth projection of the monosaccharide β-D-xylose. Which one of the following Haworth projections is of the monosaccharide β-L-xylose?
| CH2OH | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | H |
| . | . | OH | . | HO | . | . |
Incorrect | H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | H | . | . |
Incorrect | CH2OH | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | H |
| . | . | H | . | H | . | . |
Incorrect | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | H |
| . | . | OH | . | HO | . | . |
Incorrect | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | H |
| . | . | OH | . | H | . | . |
Correct
MC c173_a6fe
β-D-allose
| H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Above is a Haworth projection of the monosaccharide β-D-allose. Which one of the following Haworth projections is of the monosaccharide β-L-allose?
| 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 | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct