1. The most important epimer of glucose is
a) Galactose
b) Fructose
c) Arabinose
d) Xylose
2. α-D-glucose and β-D-glucose are
a) Stereoisomers
b) Epimers
c) Anomers
d) Keto-aldo pairs
3. α-D-glucose + 1120 → + 52.50 ← + 190 β-D-glucose for glucose above represents
a) Optical isomerism
b) Mutarotation
c) Epimerisation
d) D and L isomerism
4. Compounds having the same structural formula but differing in spatial configuration are known as
a) Stereoisomers
b) Anomers
c) Optical isomers
d) Epimers
5. In glucose the orientation of the —H and —OH groups around the carbon atom 5 adjacent to the terminal primary alcohol carbon determines
a) D or L series
b) Dextro or levorotatory
c) α and β anomers
d) Epimers
6. The carbohydrate of the blood group substances is
a) Sucrose
b) Fucose
c) Arabinose
d) Maltose
7. Erythromycin contains
a) Dimethyl amino sugar
b) Trimethyl amino sugar
c) Sterol and sugar
d) Glycerol and sugar
8. A sugar alcohol is
a) Mannitol
b) Trehalose
c) Xylulose
d) Arabinose
9. The major sugar of insect hemolymph is
a) Glycogen
b) Pectin
c) Trehalose
d) Sucrose
10. The sugar found in DNA is
a) Xylose
b) Ribose
c) Deoxyribose
d) Ribulose