Carbohydrates Biochemistry Set 1

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Biochemistry (Carbohydrates And Carbohydrate Metabolism Set 1)

MCQ

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1. Specific gravity of urine is decreased in

A) Diarrhea

B) Acute glomerulonephritis

C) Diabetes mellitus

D) Chronic glomerulonephritis

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2. Lactate formed in muscles can be utilised
through

A) Citric acid cycl

B) Cori’s cycle

C) Glucose-alanine cycle

D) Rapoport-Luebeling cycle

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3. Action of salivary amylase on starch leads
to the formation of

A) Maltose

B) Maltotriose

C) Both of the above

D) Neither of these

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4. Pyruvate carboxylase is regulated by

A) All of these

B) Induction

C) Allosteric regulation

D) Repression

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5. Polyuria can occur in

A) High fever

B) Diabetes mellitus

C) Diarrhea

D) Acute glomerulonephritis Acute glomerulonephritis

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6. Fructose-2, 6-biphosphate is formed by
the action of

A) Fructose-1, 6-biphosphatase

B) Phosphofructokinase-2

C) Phosphofructokinase-1

D) Fructose biphosphate isomerase

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7. The reaction succinyl COA to succinate
requires

A) NADP+

B) ADP

C) GDP

D) CDP

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8. Galactose on oxidation with conc. HNO3
produces

A) Gluconic acid

B) Saccharo Lactone

C) Mucic acid

D) Saccharic acid

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9. Glucose-6-phosphatase is not present in

A) Liver and kidneys

B) Muscles and adipose tissue

C) Kidneys and adipose tissue

D) Kidneys and muscles

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10. Hexokinase has a high affinity for glucose
than

A) Glucokinase

B) Galactokinase

C) Fructokinase

D) All of the above

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11. In the diet of a diabetic patient, the
recommended carbohydrate intake
should preferably be in the form of In the diet of a diabetic patient, the
recommended carbohydrate intake
should preferably be in the form of

A) Dissaccharides

B) Monosaccharides

C) Polysaccharides

D) All of these

12 / 26

12. Cori’s cycle transfers

A) Glucose from muscles to liverGlucose from muscles to liver

B) Lactate from liver to muscles

C) Lactate from muscles to liver

D) Pyruvate from liver to muscles

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13. Cyclic AMP is formed from ATP by the
enzyme adenylate cyclase which is
activated by the hormone

A) Epinephrine

B) Testosterone

C) Progesterone

D) Insulin

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14. Gluconeogenesis is decreased by

A) Insulin

B) Epinephrine

C) Glucocorticoids

D) Glucagon

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15. During starvation, ketone bodies are used
as a fuel by

A) Liver

B) All of these

C) Erythrocytes

D) Brain

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16. Ethanol decreases gluconeogenesis by

A) Converting NAD+ into NADH and decreasing the availability of pyruvate

B) Inhibiting PEP carboxykinase

C) Inhibiting glucose-6-phosphatase

D) Converting NAD+ into NADH and decreasing the availability of lactate

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17. Dihydroxyacetone phosphate and
glyceraldehyde-3-phosphate are
intercoverted by

A) Diphosphotriose isomerase

B) Dihydroxyacetone phosphorylase

C) Triose isomerase

D) Phosphotriose isomerase

18 / 26

18. Glucose-6-phosphatase is absent or
deficient in

A) Von Gierke’s disease

B) Pompe’s disease

C) McArdle’s disease

D) Cori’s disease

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19. Glycogen synthetase activity is depressed
by

A) Glucose

B) Fructokinase

C) Cyclic AMP

D) Insulin

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20. Uridine diphosphate glucose (UDPG) is

A) All of the above

B) Required for synthesis of glucuronic acid

C) A substrate for glycogen synthetase

D) Required for metabolism of galactose

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21. Glucose uptake by liver cells is

A) Insulin-independent

B) Insulin-dependent

C) Energy-consuming

D) A saturable process

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22. Excessive intake of ethanol increases the
ratio

A) FADH2 : FAD

B) NADH : NAD+

C) NAD+ : NADH

D) FAD : FADH2

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23. Glycogenin is

A) Uncoupler of oxidative phosphorylation

B) Intermediate in glycogen breakdown

C) Polymer of glycogen molecules

D) Protein primer for glycogen synthesis

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24. An amphibolic pathway among the
following is

A) Citirc acid cycle

B) HMP shunt

C) Glycolysis

D) Gluconeogenesis

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25. The carrier of the citric acid cycle is

A) Succinate

B) Malate

C) Oxaloacetate

D) Fumarate

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26. The following is actively absorbed in the
intestine

A) Fructose

B) Mannose

C) None of these

D) Galactose

Your score is

The average score is 26%

Carbohydrates Biochemistry Set 1

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