Carbohydrates Biochemistry Set 1

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Biochemistry (Carbohydrates And Carbohydrate Metabolism Set 1)

MCQ

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1. Glucose-6-phosphatase is not present in

A) Kidneys and muscles

B) Kidneys and adipose tissue

C) Muscles and adipose tissue

D) Liver and kidneys

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

A) Neither of these

B) Maltotriose

C) Both of the above

D) Maltose

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

A) Pompe’s disease

B) Cori’s disease

C) McArdle’s disease

D) Von Gierke’s disease

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4. Ethanol decreases gluconeogenesis by

A) Inhibiting PEP carboxykinase

B) Inhibiting glucose-6-phosphatase

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

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

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5. Lactate formed in muscles can be utilised
through

A) Citric acid cycl

B) Rapoport-Luebeling cycle

C) Cori’s cycle

D) Glucose-alanine cycle

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6. Glucose uptake by liver cells is

A) A saturable process

B) Insulin-dependent

C) Energy-consuming

D) Insulin-independent

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7. Excessive intake of ethanol increases the
ratio

A) FADH2 : FAD

B) NAD+ : NADH

C) FAD : FADH2

D) NADH : NAD+

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8. The carrier of the citric acid cycle is

A) Succinate

B) Malate

C) Fumarate

D) Oxaloacetate

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9. Glycogenin is

A) Protein primer for glycogen synthesis

B) Polymer of glycogen molecules

C) Intermediate in glycogen breakdown

D) Uncoupler of oxidative phosphorylation

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10. Cori’s cycle transfers

A) Lactate from muscles to liver

B) Glucose from muscles to liverGlucose from muscles to liver

C) Lactate from liver to muscles

D) Pyruvate from liver to muscles

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11. Glycogen synthetase activity is depressed
by

A) Fructokinase

B) Glucose

C) Insulin

D) Cyclic AMP

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12. 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) Polysaccharides

C) All of these

D) Monosaccharides

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13. Galactose on oxidation with conc. HNO3
produces

A) Saccharic acid

B) Saccharo Lactone

C) Mucic acid

D) Gluconic acid

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14. An amphibolic pathway among the
following is

A) Glycolysis

B) Gluconeogenesis

C) Citirc acid cycle

D) HMP shunt

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15. Pyruvate carboxylase is regulated by

A) Allosteric regulation

B) All of these

C) Induction

D) Repression

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

A) Testosterone

B) Epinephrine

C) Insulin

D) Progesterone

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17. Uridine diphosphate glucose (UDPG) is

A) Required for synthesis of glucuronic acid

B) Required for metabolism of galactose

C) A substrate for glycogen synthetase

D) All of the above

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

A) Brain

B) Erythrocytes

C) All of these

D) Liver

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19. Specific gravity of urine is decreased in

A) Chronic glomerulonephritis

B) Diabetes mellitus

C) Acute glomerulonephritis

D) Diarrhea

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20. Polyuria can occur in

A) Diabetes mellitus

B) High fever

C) Acute glomerulonephritis Acute glomerulonephritis

D) Diarrhea

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21. Gluconeogenesis is decreased by

A) Glucagon

B) Epinephrine

C) Insulin

D) Glucocorticoids

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

A) Dihydroxyacetone phosphorylase

B) Triose isomerase

C) Phosphotriose isomerase

D) Diphosphotriose isomerase

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

A) Fructose-1, 6-biphosphatase

B) Phosphofructokinase-1

C) Phosphofructokinase-2

D) Fructose biphosphate isomerase

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24. Hexokinase has a high affinity for glucose
than

A) Glucokinase

B) Galactokinase

C) Fructokinase

D) All of the above

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25. The reaction succinyl COA to succinate
requires

A) GDP

B) CDP

C) NADP+

D) ADP

26 / 26

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 24%

Carbohydrates Biochemistry Set 1

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