Carbohydrate & Carbohydrate Metabolism (Biochemistry) MCQs Set-2

Biochemistry Mcqs

1. A polysaccharide which is often called animal starch is 

(A) Glycogen 
(B) Starch 
(C) Inulin 
(D) Dextrin

 Answer:(D) Dextrin

2. The homopolysaccharide used for intravenous infusion as plasma substitute is 

(A) Agar 
(B) Inulin 
(C) Pectin 
(D) Starch 

Answer:(A) Agar 

3. The polysaccharide used in assessing the glomerular filtration rate (GFR) is 

(A) Glycogen 
(B) Agar 
(C) Inulin 
(D) Hyaluronic acid

Answer:(C) Inulin 

4. The constituent unit of inulin is 

(A) Glucose 
(B) Fructose 
(C) Mannose 
(D) Galactose

Answer:(B) Fructose 

5. The polysaccharide found in the exoskeleton of invertebrates is 

(A) Pectin 
(B) Chitin 
(C) Cellulose 
(D) Chondroitin sulphate 

Answer:(B) Chitin

6. Which of the following is a heteroglycan? 

(A) Dextrins 
(B) Agar 
(C) Inulin 
(D) Chitin

Answer:(B) Agar 

7. The glycosaminoglycan which does not contain uronic acid is 

(A) Dermatan sulphate 
(B) Chondroitin sulphate 
(C) Keratan sulphate 
(D) Heparan sulphate 

Answer:(C) Keratan sulphate

8. The glycosaminoglycan which does not contain uronic acid is 

(A) Hyaluronic acid 
(B) Heparin 
(C) Chondroitin sulphate 
(D) Dermatan sulphate 

Answer:(B) Heparin

9. Keratan sulphate is found in abundance in 

(A) Heart muscle 
(B) Liver 
(C) Adrenal cortex 
(D) Cornea 

Answer:(D) Cornea

10. Repeating units of hyaluronic acid are 

(A) N-acetyl glucosamine and D-glucuronic acid 
(B) N-acetyl galactosamine and D-glucuronic acid 
(C) N-acetyl glucosamine and galactose 
(D) N-acetyl galactosamine and L- iduronic acid 

Answer:(A) N-acetyl glucosamine and D-glucuronic acid

11. The approximate number of branches in amylopectin is 

(A) 10 
(B) 20 
(C) 40 
(D) 80 

Answer:(D) 80 

12. In amylopectin the intervals of glucose units of each branch is 

(A) 10–20 
(B) 24–30 
(C) 30–40 
(D) 40–50

Answer:(B) 24–30

13. A polymer of glucose synthesized by the action of leuconostoc mesenteroides in a sucrose medium is 

(A) Dextrans 
(B) Dextrin 
(C) Limit dextrin 
(D) Inulin

Answer:(A) Dextrans

14. Glucose on reduction with sodium amalgam forms

(A) Dulcitol 
(B) Sorbitol 
(C) Mannitol 
(D) Mannitol and sorbitol 

Answer:(B) Sorbitol

15. Glucose on oxidation does not give 

(A) Glycoside 
(B) Gluco Saccharic acid 
(C) Gluconic acid 
(D) Glucuronic acid 

Answer:(A) Glycoside

16. Oxidation of galactose with conc HNO3 yields 

(A) Mucic acid 
(B) Glucuronic acid 
(C) Saccharic acid 
(D) Gluconic acid 

Answer:(A) Mucic acid 

17. A positive Benedict’s test is not given by

(A) Sucrose 
(B) Lactose
(C) Maltose 
(D) Glucose 

Answer:(A) Sucrose

18. Starch is a 

(A) Polysaccharide 
(B) Monosaccharide 
(C) Disaccharide 
(D) None of these 

Answer:(A) Polysaccharide

19. A positive Seliwanoff’s test is obtained with

(A) Glucose 
(B) Fructose 
(C) Lactose 
(D) Maltose 

Answer:(B) Fructose

20. Osazones are not formed with the 

(A) Glucose 
(B) Fructose 
(C) Sucrose 
(D) Lactose

Answer:(C) Sucrose

21. The most abundant carbohydrate found in nature is

(A) Starch 
(B) Glycogen 
(C) Cellulose 
(D) Chitin 

Answer:(C) Cellulose

22. Impaired renal function is indicated when the amount of PSP excreted in the first 15 minutes is 

(A) 20% 
(B) 35% 
(C) 40% 
(D) 45%

 Answer:(A) 20% 

23. An early feature of renal disease is 

(A) Impairment of the capacity of the tubule to perform osmotic work
(B) Decrease in maximal tubular excretory capacity 
(C) Decrease in filtration factor 
(D) Decrease in renal plasma flow 

Answer:(A) Impairment of the capacity of the tubule to perform osmotic work

24.ADH test is based on the measurement of 

(A) Specific gravity of urine 
(B) Concentration of urea in urine 
(C) Concentration of urea in blood 
(D) Volume of urine in ml/minute 

Answer:(A) Specific gravity of urine

25. The specific gravity of urine normally ranges from 

(A) 0.900–0.999 
(B) 1.003–1.030 
(C) 1.000–1.001 
(D) 1.101–1.120 

Answer:(B) 1.003–1.030 

26. Specific gravity of urine increases in

(A) Diabetes mellitus 
(B) Chronic glomerulonephritis
(C) Compulsive polydipsia 
(D) Hypercalcemia

Answer:(A) Diabetes mellitus 

27. Fixation of specific gravity of urine to 1.010 is found in 

(A) Diabetes insipidus 
(B) Compulsive polydipsia 
(C) Cystinosis
(D) Chronic glomerulonephritis 

Answer:(D) Chronic glomerulonephritis 

28. Addis test is the measure of

(A) Impairment of the capacity of the tubule to perform osmotic work 
(B) Secretory function of liver 
(C) Excretory function of liver 
(D) Activity of parenchymal cells of liver 

Answer:(A) Impairment of the capacity of the tubule to perform osmotic work

29. Number of stereoisomers of glucose is 

(A) 4 
(B) 8 
(C) 16 
(D) None of these 

Answer:(C) 16 

30. Maltose can be formed by hydrolysis of 

(A) Starch 
(B) Dextrin 
(C) Glycogen 
(D) All of these

Answer:(D) All of these

31. α–D–Glucuronic acid is present in 

(A) Hyaluronic acid 
(B) Chondroitin sulphate 
(C) Heparin 
(D) All of these 

Answer:(C) Heparin 

32. Fructose is present in hydrolysate of 

(A) Sucrose 
(B) Inulin 
(C) Both of the above 
(D) None of these 

Answer:(C) Both of the above

33. A carbohydrate found in DNA is 

(A) Ribose 
(B) Deoxyribose 
(C) Ribulose 
(D) All of these 

Answer:(B) Deoxyribose

34. Ribulose is a these 

(A) Ketotetrose 
(B) Aldotetrose 
(C) Ketopentose 
(D) Aldopentose 

Answer:(C) Ketopentose 

35. A carbohydrate, commonly known as dextrose, is 

(A) Dextrin 
(B) D-Fructose 
(C) D-Glucose 
(D) Glycogen 

Answer:(C) D-Glucose

36. A carbohydrate found only in milk is

(A) Glucose 
(B) Galactose 
(C) Lactose 
(D) Maltose 

Answer:(C) Lactose

37. A carbohydrate, known commonly as invert sugar, is 

(A) Fructose 
(B) Sucrose 
(C) Glucose 
(D) Lactose 

Answer:(B) Sucrose 

38. A heteropolysaccharide among the following is 

(A) Inulin 
(B) Cellulose 
(C) Heparin 
(D) Dextrin 

Answer:(C) Heparin

39. The predominant form of glucose in solution is 

(A) Acyclic form 
(B) Hydrated acyclic form
(C) Glucofuranose 
(D) Glucopyranose 

Answer:(D) Glucopyranose

40. An L-isomer of monosaccharide formed in the human body is 

(A) L-fructose 
(B) L-Erythrose 
(C) L-Xylose 
(D) L-Xylulose

 Answer:(D) L-Xylulose

41. Hyaluronic acid is found in 

(A) Joints 
(B) Brain 
(C) Abdomen 
(D) Mouth 

Answer:(A) Joints

42. The carbon atom which becomes asymmetric when the straight chain form of monosaccharide changes into ring form is known as

(A) Anomeric carbon atom 
(B) Epimeric carbon atom 
(C) Isomeric carbon atom 
(D) None of these 

Answer:(A) Anomeric carbon atom

43. The smallest monosaccharide having furanose ring structure is 

(A) Erythrose 
(B) Ribose 
(C) Glucose 
(D) Fructose

Answer:(B) Ribose

44. Which of the following is an epimeric pair? 

(A) Glucose and fructose 
(B) Glucose and galactose 
(C) Galactose and mannose 
(D) Lactose and maltose 

Answer:(B) Glucose and galactose

45. α-Glycosidic bond is present in 

(A) Lactose 
(B) Maltose 
(C) Sucrose 
(D) All of these

 Answer:(B) Maltose

46. Branching occurs in glycogen approximately after every 

(A) Five glucose units 
(B) Ten glucose units 
(C) Fifteen glucose units 
(D) Twenty glucose units 

Answer:(B) Ten glucose units 

47. N–Acetylglucosamine is present in 

(A) Hyaluronic acid 
(B) Chondroitin sulphate
(C) Heparin 
(D) All of these 

Answer:(A) Hyaluronic acid 

48. Iodine gives a red colour with 

(A) Starch 
(B) Dextrin 
(C) Glycogen 
(D) Inulin 

Answer:(C) Glycogen 

49. Amylose is a constituent of

(A) Starch 
(B) Cellulose 
(C) Glycogen 
(D) None of these 

Answer:(A) Starch 

50. Synovial fluid contains 

(A) Heparin 
(B) Hyaluronic acid 
(C) Chondroitin sulphate 
(D) Keratin sulphate

Answer:(B) Hyaluronic acid