Carbohydrates Biochemistry Set 1

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Biochemistry (Carbohydrates And Carbohydrate Metabolism Set 1)

MCQ

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1. Glucose uptake by liver cells is

A) A saturable process

B) Insulin-independent

C) Insulin-dependent

D) Energy-consuming

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

A) Liver

B) Erythrocytes

C) All of these

D) Brain

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

A) Fructose biphosphate isomerase

B) Fructose-1, 6-biphosphatase

C) Phosphofructokinase-1

D) Phosphofructokinase-2

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4. The reaction succinyl COA to succinate
requires

A) ADP

B) CDP

C) GDP

D) NADP+

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5. Uridine diphosphate glucose (UDPG) is

A) A substrate for glycogen synthetase

B) Required for synthesis of glucuronic acid

C) All of the above

D) Required for metabolism of galactose

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6. Gluconeogenesis is decreased by

A) Epinephrine

B) Insulin

C) Glucocorticoids

D) Glucagon

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

A) Diphosphotriose isomerase

B) Phosphotriose isomerase

C) Dihydroxyacetone phosphorylase

D) Triose isomerase

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8. Lactate formed in muscles can be utilised
through

A) Rapoport-Luebeling cycle

B) Glucose-alanine cycle

C) Citric acid cycl

D) Cori’s cycle

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9. Excessive intake of ethanol increases the
ratio

A) FAD : FADH2

B) NAD+ : NADH

C) FADH2 : FAD

D) NADH : NAD+

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

A) Progesterone

B) Testosterone

C) Epinephrine

D) Insulin

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11. The following is actively absorbed in the
intestine

A) Mannose

B) None of these

C) Fructose

D) Galactose

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12. 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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13. Glycogenin is

A) Intermediate in glycogen breakdown

B) Uncoupler of oxidative phosphorylation

C) Protein primer for glycogen synthesis

D) Polymer of glycogen molecules

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14. An amphibolic pathway among the
following is

A) HMP shunt

B) Citirc acid cycle

C) Gluconeogenesis

D) Glycolysis

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15. 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) All of these

B) Polysaccharides

C) Dissaccharides

D) Monosaccharides

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16. The carrier of the citric acid cycle is

A) Malate

B) Succinate

C) Oxaloacetate

D) Fumarate

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17. Specific gravity of urine is decreased in

A) Diabetes mellitus

B) Chronic glomerulonephritis

C) Acute glomerulonephritis

D) Diarrhea

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

A) Maltose

B) Neither of these

C) Both of the above

D) Maltotriose

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19. Glycogen synthetase activity is depressed
by

A) Cyclic AMP

B) Glucose

C) Insulin

D) Fructokinase

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20. Pyruvate carboxylase is regulated by

A) All of these

B) Allosteric regulation

C) Induction

D) Repression

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21. 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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22. Glucose-6-phosphatase is not present in

A) Liver and kidneys

B) Kidneys and adipose tissue

C) Muscles and adipose tissue

D) Kidneys and muscles

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23. Galactose on oxidation with conc. HNO3
produces

A) Saccharo Lactone

B) Gluconic acid

C) Saccharic acid

D) Mucic acid

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24. Polyuria can occur in

A) Acute glomerulonephritis Acute glomerulonephritis

B) High fever

C) Diarrhea

D) Diabetes mellitus

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

A) Pompe’s disease

B) Cori’s disease

C) Von Gierke’s disease

D) McArdle’s disease

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26. Hexokinase has a high affinity for glucose
than

A) Galactokinase

B) Fructokinase

C) Glucokinase

D) All of the above

Your score is

The average score is 40%

Carbohydrates Biochemistry Set 1

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