MC dc4d_8013
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?
A. | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect B. | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect C. | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct D. | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect E. | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect
MC ccb4_6793
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?
A. | H | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | H | . | H | . | . |
Incorrect B. | CH2OH | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | CH2OH |
| . | . | H | . | H | . | . |
Incorrect C. | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | CH2OH |
| . | . | H | . | H | . | . |
Correct D. | CH2OH | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | CH2OH |
| . | . | H | . | HO | . | . |
Incorrect E. | CH2OH | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | H | . | H | . | . |
Incorrect
MC 150c_8b6c
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?
A. | H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | HO | . | . |
Incorrect B. | CH2OH | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | OH | . | H | . | . |
Incorrect C. | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | H |
| . | . | OH | . | H | . | . |
Incorrect D. | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | H |
| . | . | OH | . | HO | . | . |
Correct E. | CH2OH | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | OH | . | HO | . | . |
Incorrect
MC 4040_08d7
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?
A. | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect B. | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect C. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct D. | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect E. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect
MC 750c_ea2d
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?
A. | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect B. | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect C. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect D. | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct E. | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC a7b8_5dab
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?
A. | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | H |
| . | . | H | . | HO | . | . |
Incorrect B. | CH2OH | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | OH | . | H | . | . |
Incorrect C. | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | H |
| . | . | OH | . | H | . | . |
Incorrect D. | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | H |
| . | . | H | . | H | . | . |
Incorrect E. | H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | H | . | . |
Correct
MC b246_9ed0
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?
A. | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect B. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct C. | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect D. | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect E. | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect
MC dfbd_15b3
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?
A. | CH2OH | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | OH | . | H | . | . |
Incorrect B. | H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | HO | . | . |
Incorrect C. | H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | H | . | H | . | . |
Incorrect D. | H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | H | . | . |
Incorrect E. | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | H |
| . | . | H | . | H | . | . |
Correct
MC 4db4_ff48
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?
A. | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect B. | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect C. | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect D. | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct E. | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect
MC cfbd_644b
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?
A. | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect B. | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect C. | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect D. | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect E. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct
MC 40b4_d145
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?
A. | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect B. | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect C. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect D. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct E. | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect
MC 6a6b_19c4
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?
A. | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect B. | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect C. | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect D. | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct E. | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect
MC 6b91_f37a
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?
A. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect B. | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct C. | HO | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect D. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect E. | HO | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect
MC c427_6dce
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?
A. | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect B. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect C. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect D. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect E. | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct
MC 1854_8ae1
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?
A. | H | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | H | . | . |
Incorrect B. | H | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | H | . | HO | . | . |
Incorrect C. | CH2OH | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | CH2OH |
| . | . | H | . | H | . | . |
Incorrect D. | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | CH2OH |
| . | . | OH | . | HO | . | . |
Incorrect E. | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | CH2OH |
| . | . | OH | . | H | . | . |
Correct
MC 43b0_d7e6
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?
A. | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect B. | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect C. | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect D. | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect E. | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct
MC 251e_e51a
α-D-arabinaose
| CH2OH | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | OH | . | H | . | . |
Above is a Haworth projection of the monosaccharide α-D-arabinaose. Which one of the following Haworth projections is of the monosaccharide α-L-arabinaose?
A. | CH2OH | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | OH | . | HO | . | . |
Incorrect B. | CH2OH | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | H |
| . | . | H | . | HO | . | . |
Incorrect C. | H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | H | . | HO | . | . |
Incorrect D. | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | H |
| . | . | H | . | HO | . | . |
Correct E. | CH2OH | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | H | . | HO | . | . |
Incorrect
MC 1639_521a
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?
A. | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect B. | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect C. | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect D. | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect E. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct
MC 154c_9a14
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?
A. | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect B. | H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect C. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct D. | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect E. | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC d52c_55f2
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?
A. | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect B. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect C. | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect D. | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect E. | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct
MC a4f0_0ea9
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?
A. | CH2OH | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | OH | . | H | . | . |
Incorrect B. | H | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | H | . | H | . | . |
Incorrect C. | CH2OH | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | CH2OH |
| . | . | OH | . | HO | . | . |
Incorrect D. | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | CH2OH |
| . | . | OH | . | HO | . | . |
Incorrect E. | H | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | HO | . | . |
Correct
MC ac82_bfdf
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?
A. | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect B. | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect C. | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct D. | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect E. | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect
MC 247c_c6f3
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?
A. | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect B. | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect C. | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct D. | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect E. | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect
MC 79c1_75c3
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?
A. | H | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | H | . | H | . | . |
Incorrect B. | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | CH2OH |
| . | . | H | . | HO | . | . |
Incorrect C. | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | CH2OH |
| . | . | H | . | H | . | . |
Correct D. | H | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | HO | . | . |
Incorrect E. | CH2OH | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | CH2OH |
| . | . | H | . | HO | . | . |
Incorrect
MC 5118_4cba
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?
A. | H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | HO | . | . |
Incorrect B. | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | H |
| . | . | H | . | HO | . | . |
Incorrect C. | H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | H | . | . |
Incorrect D. | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | H |
| . | . | H | . | H | . | . |
Incorrect E. | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | H |
| . | . | OH | . | HO | . | . |
Correct
MC ae52_dd49
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?
A. | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect B. | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect C. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect D. | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect E. | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct
MC ce53_21f1
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?
A. | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect B. | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect C. | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect D. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect E. | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct
MC b8ea_858c
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?
A. | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | H |
| . | . | H | . | H | . | . |
Incorrect B. | CH2OH | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | H | . | H | . | . |
Incorrect C. | H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | H | . | . |
Incorrect D. | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | H |
| . | . | H | . | HO | . | . |
Incorrect E. | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | H |
| . | . | OH | . | H | . | . |
Correct
MC c2e7_d534
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?
A. | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect B. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect C. | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect D. | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct E. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC 70b8_049b
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?
A. | H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | H | . | H | . | . |
Incorrect B. | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | H |
| . | . | H | . | H | . | . |
Correct C. | CH2OH | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | H |
| . | . | H | . | HO | . | . |
Incorrect D. | CH2OH | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | OH | . | H | . | . |
Incorrect E. | H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | HO | . | . |
Incorrect
MC add3_f1df
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?
A. | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect B. | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect C. | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect D. | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect E. | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct
MC cb0e_47c8
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?
A. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect B. | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Correct C. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect D. | HO | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect E. | H | . | . | . | CH2OH | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect
MC ade1_5e6f
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?
A. | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect B. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct C. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect D. | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect E. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC 98de_29a7
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?
A. | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect B. | HO | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect C. | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect D. | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect E. | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct
MC 32c1_7b5d
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?
A. | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect B. | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect C. | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect D. | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect E. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct
MC 94b4_4fdc
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?
A. | H | . | . | . | CH2OH | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect B. | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect C. | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect D. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct E. | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect
MC 21e9_37e7
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?
A. | CH2OH | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | H | . | H | . | . |
Incorrect B. | CH2OH | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | CH2OH |
| . | . | OH | . | HO | . | . |
Incorrect C. | H | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | H | . | . |
Incorrect D. | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | CH2OH |
| . | . | OH | . | H | . | . |
Correct E. | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | CH2OH |
| . | . | H | . | HO | . | . |
Incorrect
MC c173_3aae
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?
A. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect B. | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect C. | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect D. | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct E. | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect
MC 3054_4e81
β-D-arabinaose
| CH2OH | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | H |
| . | . | OH | . | H | . | . |
Above is a Haworth projection of the monosaccharide β-D-arabinaose. Which one of the following Haworth projections is of the monosaccharide β-L-arabinaose?
A. | H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | H | . | HO | . | . |
Incorrect B. | CH2OH | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | H |
| . | . | H | . | HO | . | . |
Incorrect C. | CH2OH | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| H | . | . | . | . | . | . | . | OH |
| . | . | H | . | H | . | . |
Incorrect D. | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | H |
| . | . | H | . | HO | . | . |
Correct E. | H | . | . | . | O | . | . | . | H |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | H | . | H | . | . |
Incorrect
MC 4423_038e
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?
A. | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect B. | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect C. | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect D. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct E. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | HO | . | . | . |
Incorrect
MC 4222_7172
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?
A. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect B. | HO | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect C. | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect D. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Correct E. | H | . | . | . | CH2OH | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | H | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect
MC ec7c_2161
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?
A. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect B. | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect C. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | H |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect D. | HO | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Correct E. | H | . | . | . | H | . | . | . | . | . | H |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect
MC 5866_955b
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?
A. | H | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | OH | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | H | . | HO | . | . |
Incorrect B. | H | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | H | . | . |
Incorrect C. | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | CH2OH |
| . | . | OH | . | HO | . | . |
Incorrect D. | H | . | . | . | O | . | . | . | CH2OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | H | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | OH |
| . | . | OH | . | HO | . | . |
Correct E. | H | . | . | . | O | . | . | . | OH |
| . | . | ⟋ | . | ⟍ | . | . |
| ⟋ | . | . | . | ⟍ |
| . | \ | . | H | . | HO | . | / | . |
| . | . | \ | . | . | . | / | . | . |
| CH2OH | . | . | . | . | . | . | . | CH2OH |
| . | . | OH | . | H | . | . |
Incorrect
MC 941c_5138
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?
A. | H | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | H | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | HO | . | . | . |
Incorrect B. | HO | . | . | . | H | . | . | . | . | . | CH2OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect C. | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Correct D. | H | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | H | . | HO | . | / | . |
| HO | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | OH | . | H | . | . | . |
Incorrect E. | HO | . | . | . | H | . | . | . | . | . | OH |
| . | . | . | . | | . | . | . | . |
| . | . | / | . | . | . | O | . | . |
| . | . | / | . | CH2OH | . | . | . | \ | . | . |
| / | . | . | Haworth | . | . | \ |
| . | \ | . | . | . | . | / | . |
| . | \ | . | OH | . | HO | . | / | . |
| H | . | . | \ | . | . | . | / | . | . | CH2OH |
| . | . | . | . | . | . | . | . | . |
| . | . | . | H | . | H | . | . | . |
Incorrect