Carbohydrates Biochemistry Set 3

/26

Biochemistry (Carbohydrates And Carbohydrate Metabolism Set 3)

MCQ

1 / 26

1. The tissues with the highest total glycogen
content are

A) Brain and Liver

B) Kidneys and liver

C) Muscle and kidneys

D) Liver and muscle

2 / 26

2. Glucose enters the cells by

A) enzyme mediated transport

B) Both (A) and (B)

C) insulin independent transport

D) insulin dependent transport

3 / 26

3. The oxidation of lactic acid to pyruvic acid
requires the following vitamin derivative
as the hydrogen carrier

A) NAD+

B) Lithium pyrophosphate

C) FMN

D) Coenyzme A

4 / 26

4. Which of the following reaction gives
lactose

A) Glucose, Galactose and UTP

B) UDP galactose and glucose

C) Glucose and Galactose

D) UDP glucose and galactose

5 / 26

5. Transketolase has the coenzyme

A) FP

B) NAD+

C) TPP

D) Pyridoxol phosphate

6 / 26

6. Glycogen while being acted upon by active phosphorylase is converted first to

A) 6-Phosphogluconic acid

B) Glucose

C) Glucose 1-phosphate and Glycogen with 1 carbon less

D) Glucose-6-phosphate and Glycogen with 1 carbon less

7 / 26

7. The formation of citrate from oxalo
acetate and acetyl CoA is

A) Hydrolysis

B) Condensation

C) Reduction

D) Oxidation

8 / 26

8. Tissues form lactic acid from glucose. This
phenomenon is termed as

A) Aerobic glycolysis

B) Oxidative phosphorylation

C) Anaerobic glycolysis

D) Oxidation

9 / 26

9. One molecule of glucose gives ______
molecules of CO2 in EM-TCA cycle.

A) 2

B) 6

C) 3

D) 1

10 / 26

10. The number of molecules of ATP produced
by the total oxidation of acetyl CoA in
TCA cycle is

A) Isocitrate dehydrogenase

B) Aconitase

C) Malate dehydrogenase

D) Succinate thiokinase

11 / 26

11. The hydrolysis of Glucose-6-phosphate is
catalysed by a specific phosphatase
which is found only in

A) Liver, intestines and kidneys

B) Striated muscle

C) Plasma

D) Brain, spleen and adrenals

12 / 26

12. Fluoride inhibits ______ and arrests glycolysis

A) Glyceraldehyde-3-phosphate dehydrogenase

B) Succinate dehydrogenase

C) Aconitase

D) Enolose

13 / 26

13. Reactivation of inactive liver phosphorylase is normally favoured by

A) Epinephrine

B) ACTH

C) Insulin

D) Glucagon

14 / 26

14. Fatty acids cannot be converted into
carbohydrates in the body as the
following reaction is not possible

A) Conversion of glucose-6-phosphate into glucose

B) Transformation of acetyl CoA to pyruvate

C) Formation of acetyl CoA from fatty acids

D) Fructose 1,6-bisphosphate to fructose-6- phosphate

15 / 26

15. For glycogenesis, Glucose should be converted to

A) Pyruvic acid

B) UDP glucose

C) Glucuronic acid

D) Sorbitol

16 / 26

16. Two examples of substrate level phosphorylation in EM pathway of glucose metabolism are in the reactions of

A) 1,3 diphosphoglycerate and 2-phosphoglycerate

B) 3 phosphoglyceraldehyde and phosphoenolpyruvate

C) Glucose-6 phosphate and Fructo-6-phosphate

D) 1,3 bisphosphoglycerate and phosphoenol pyruvate

17 / 26

17. Amylo 1, 6 glucosidase is called

A) debranching enzyme

B) Branching enzyme

C) Glucantransferase

D) Phosphorylase

18 / 26

18. . UDP Glucuronic acid is required for the
biosynthesis of

A) Starch

B) Glycogen

C) Lactose

D) Chondroitin sulphates

19 / 26

19. The number of ATP produced in the
succinate dehydrogenase step is

A) 4

B) 2

C) 1

D) 3

20 / 26

20. Gluconeogenesis is increased in the
following condition

A) Liver diseases

B) Diabetes insipidus

C) Hypothyroidism

D) Diabetes Mellitus

21 / 26

21. Which one of the following is a rate
limiting enzyme of gluconeogenesis

A) Pyruvate carboxylase

B) Hexokinase

C) Pyruvate kinase

D) Phsophofructokinase

22 / 26

22. Transketolase has the coenzyme

A) Pyridoxol phosphate

B) NAD+

C) FP

D) TPP

23 / 26

23. One of the following statement is correct

A) UDP glucose molecules interact and grow into a Glycogen tree

B) cAMP converts glycogen synthase b to ‘a’

C) Insulin converts glycogen synthase b to a

D) Glycogen synthase ‘a’ is the phosphorylated

24 / 26

24. When O2 supply is inadequate, pyruvate
is converted to

A) Phosphopyruvate

B) Acetyl CoA

C) Alanine

D) Lactate

25 / 26

25. Which one of the following can covert
glucose to vitamin C

A) Guinea pigs

B) Humans

C) Albino rats

D) Monkeys

26 / 26

26. Before pyruvic acid enters the TCA cycle it
must be converted to

A) Lactate

B) α-ketoglutarate

C) Acetyl CoA

D) Citrate

Your score is

The average score is 40%

Carbohydrates Biochemistry Set 3

Follow Us on Social Media