Carbohydrates Biochemistry Set 1

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Biochemistry (Carbohydrates And Carbohydrate Metabolism Set 1)

MCQ

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1. Polyuria can occur in

A) Acute glomerulonephritis Acute glomerulonephritis

B) Diabetes mellitus

C) High fever

D) Diarrhea

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2. Excessive intake of ethanol increases the
ratio

A) NADH : NAD+

B) FADH2 : FAD

C) NAD+ : NADH

D) FAD : FADH2

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

A) Insulin

B) Epinephrine

C) Progesterone

D) Testosterone

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4. The following is actively absorbed in the
intestine

A) None of these

B) Fructose

C) Galactose

D) Mannose

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5. Pyruvate carboxylase is regulated by

A) Induction

B) Allosteric regulation

C) Repression

D) All of these

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6. The carrier of the citric acid cycle is

A) Oxaloacetate

B) Malate

C) Fumarate

D) Succinate

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7. Cori’s cycle transfers

A) Pyruvate from liver to muscles

B) Lactate from liver to muscles

C) Glucose from muscles to liverGlucose from muscles to liver

D) Lactate from muscles to liver

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8. An amphibolic pathway among the
following is

A) Gluconeogenesis

B) HMP shunt

C) Glycolysis

D) Citirc acid cycle

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

A) Phosphotriose isomerase

B) Triose isomerase

C) Diphosphotriose isomerase

D) Dihydroxyacetone phosphorylase

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10. Glucose uptake by liver cells is

A) Insulin-independent

B) Insulin-dependent

C) Energy-consuming

D) A saturable process

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11. Uridine diphosphate glucose (UDPG) is

A) Required for metabolism of galactose

B) A substrate for glycogen synthetase

C) Required for synthesis of glucuronic acid

D) All of the above

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12. Ethanol decreases gluconeogenesis by

A) Inhibiting PEP carboxykinase

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

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

D) Inhibiting glucose-6-phosphatase

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13. Glycogen synthetase activity is depressed
by

A) Fructokinase

B) Cyclic AMP

C) Insulin

D) Glucose

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14. Lactate formed in muscles can be utilised
through

A) Rapoport-Luebeling cycle

B) Glucose-alanine cycle

C) Cori’s cycle

D) Citric acid cycl

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15. Glucose-6-phosphatase is not present in

A) Kidneys and adipose tissue

B) Liver and kidneys

C) Muscles and adipose tissue

D) Kidneys and muscles

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16. Glycogenin is

A) Polymer of glycogen molecules

B) Protein primer for glycogen synthesis

C) Intermediate in glycogen breakdown

D) Uncoupler of oxidative phosphorylation

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

A) Cori’s disease

B) Von Gierke’s disease

C) Pompe’s disease

D) McArdle’s disease

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18. The reaction succinyl COA to succinate
requires

A) ADP

B) NADP+

C) CDP

D) GDP

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19. 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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20. Galactose on oxidation with conc. HNO3
produces

A) Saccharo Lactone

B) Saccharic acid

C) Gluconic acid

D) Mucic acid

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21. Hexokinase has a high affinity for glucose
than

A) Galactokinase

B) Glucokinase

C) Fructokinase

D) All of the above

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22. 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) Polysaccharides

B) Dissaccharides

C) All of these

D) Monosaccharides

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

A) Erythrocytes

B) Liver

C) Brain

D) All of these

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24. Specific gravity of urine is decreased in

A) Chronic glomerulonephritis

B) Diabetes mellitus

C) Acute glomerulonephritis

D) Diarrhea

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25. Gluconeogenesis is decreased by

A) Insulin

B) Glucagon

C) Glucocorticoids

D) Epinephrine

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

A) Maltotriose

B) Neither of these

C) Both of the above

D) Maltose

Your score is

The average score is 24%

Carbohydrates Biochemistry Set 1

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