Carbohydrates Biochemistry Set 1

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Biochemistry (Carbohydrates And Carbohydrate Metabolism Set 1)

MCQ

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1. Galactose on oxidation with conc. HNO3
produces

A) Gluconic acid

B) Saccharo Lactone

C) Saccharic acid

D) Mucic acid

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2. Pyruvate carboxylase is regulated by

A) Allosteric regulation

B) All of these

C) Repression

D) Induction

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3. Cori’s cycle transfers

A) Lactate from muscles to liver

B) Pyruvate from liver to muscles

C) Glucose from muscles to liverGlucose from muscles to liver

D) Lactate from liver to muscles

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4. Hexokinase has a high affinity for glucose
than

A) Glucokinase

B) Galactokinase

C) All of the above

D) Fructokinase

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5. Excessive intake of ethanol increases the
ratio

A) FAD : FADH2

B) NADH : NAD+

C) FADH2 : FAD

D) NAD+ : NADH

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6. Glycogenin is

A) Polymer of glycogen molecules

B) Protein primer for glycogen synthesis

C) Uncoupler of oxidative phosphorylation

D) Intermediate in glycogen breakdown

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7. Glucose uptake by liver cells is

A) Energy-consuming

B) A saturable process

C) Insulin-dependent

D) Insulin-independent

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

A) Dihydroxyacetone phosphorylase

B) Diphosphotriose isomerase

C) Triose isomerase

D) Phosphotriose isomerase

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

A) Liver

B) Brain

C) All of these

D) Erythrocytes

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10. Lactate formed in muscles can be utilised
through

A) Glucose-alanine cycle

B) Rapoport-Luebeling cycle

C) Citric acid cycl

D) Cori’s cycle

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11. Specific gravity of urine is decreased in

A) Acute glomerulonephritis

B) Chronic glomerulonephritis

C) Diarrhea

D) Diabetes mellitus

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12. Gluconeogenesis is decreased by

A) Epinephrine

B) Insulin

C) Glucocorticoids

D) Glucagon

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

A) Neither of these

B) Maltotriose

C) Maltose

D) Both of the above

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14. Polyuria can occur in

A) Acute glomerulonephritis Acute glomerulonephritis

B) Diarrhea

C) Diabetes mellitus

D) High fever

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15. The following is actively absorbed in the
intestine

A) Galactose

B) Mannose

C) Fructose

D) None of these

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16. Glucose-6-phosphatase is not present in

A) Kidneys and muscles

B) Liver and kidneys

C) Kidneys and adipose tissue

D) Muscles and adipose tissue

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17. The carrier of the citric acid cycle is

A) Fumarate

B) Succinate

C) Oxaloacetate

D) Malate

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18. Glycogen synthetase activity is depressed
by

A) Glucose

B) Insulin

C) Cyclic AMP

D) Fructokinase

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

A) Phosphofructokinase-2

B) Fructose biphosphate isomerase

C) Fructose-1, 6-biphosphatase

D) Phosphofructokinase-1

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20. 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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21. The reaction succinyl COA to succinate
requires

A) ADP

B) NADP+

C) CDP

D) GDP

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22. 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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23. An amphibolic pathway among the
following is

A) Gluconeogenesis

B) Citirc acid cycle

C) Glycolysis

D) HMP shunt

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

A) Von Gierke’s disease

B) Pompe’s disease

C) Cori’s disease

D) McArdle’s disease

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25. 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) Monosaccharides

B) Polysaccharides

C) Dissaccharides

D) All of these

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26. Uridine diphosphate glucose (UDPG) is

A) Required for synthesis of glucuronic acid

B) A substrate for glycogen synthetase

C) All of the above

D) Required for metabolism of galactose

Your score is

The average score is 27%

Carbohydrates Biochemistry Set 1

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