Carbohydrates Mcqs

           Carbohydrates Mcqs 

 

1. B-1, 4 Glycosidic bond is present in *

a) Maltose

b) Lactose

c) Sucrose

d) None of above

2.  A homopolysaccharide made up of fructose is *

a) Glycogen

b) Dextrin

c) Cellulose

d) Inulin                         

3.  Aglycone portion in methyl glucoside is *

a) Glucose

b) Methanol

c) Both of the above

d) Neither of the above

4. The following is an epimeric pair: *

a) Glucose and fructose

b) Glucose and galactose

c) Galactose and mannose

d) Lactose and maltose

5.  Maltose can be formed by hydrolysis of: *

a) Starch

b) Dextrin

c) Glycogen

d) All of the above

6.  a-1,6- Glycosidic bond is not present in : *

a) Glycogen

b) Dextrin

c) Amylose

d) Amylopectin

7. A monosaccharide not having D-and L- isomers is : *

a) Ribose

b) Deoxyribose

c) Erythrose

d) Dihydroxyacetone

8. Iodine gives a red colour with *

a) Starch

b) Dextrin

c) Glycogen

d) Inulin

9. In straight chain structure of D-ribose, -OH group is present on right hand side of carbon atom number : *

a) 2

b) 3

c) 4

d) All of the above

10. Fructose is present is hydrolysate of : *

a) Sucrose

b) Inulin

c) Both of the above

d) Neihter of the above

11.  Identical osazones are fromed by: *

a) Glucose and fructose

b) Glucose and mannose

c) Mannose and fructose

d) All of the above

12. Sulphated iduronic acid is present in ; *

a) Hyaluronic acid

b) Chondroilin sulphate

c) Heparin

d) All of the above

13. Optical isomerism is denoted by : *

a) D-and L-

b) d-and l-

c) (+)and (-)

d) Any of the above

14. A heteropolysaccharide among the following is : *

Optioa) Inulln

b) Cellulose

c) Heparin

d) Dextrin

15. Monosaccharides can be separated by: *

a) Electrophoresis

b) Chromatography

c) Salting out

d) None of the above

16. A disaccharide made up of two glucose units is : *

a) Sucrose

b) Maltose

c) Lactose

d) Dextrin

17.  Number of asymmetric carbon atoms in glucose is *

a) One

b) Two

c) Three

d) Four

18. The ratio of α-D-glucopyranose to β -D-glucopyranose at equilibrium is nearly : *

a) 2:1

b) 1:1

c) 1:2

d) 1:1.5

19. Number of stereoisomer's of glucose is *

a) 4

b) 8

c) 16

d) None of above

20. In fructofuranose , anomeric carbon atom is : *

a) Carbon 1

b) Carbon 2

c) Carbon 3

d) Carbon