Carbohydrates Biochemistry Set 1

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Biochemistry (Carbohydrates And Carbohydrate Metabolism Set 1)

MCQ

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1. 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) All of these

C) Monosaccharides

D) Dissaccharides

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2. 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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3. Glucose uptake by liver cells is

A) Insulin-dependent

B) A saturable process

C) Energy-consuming

D) Insulin-independent

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4. Cori’s cycle transfers

A) Pyruvate from liver to muscles

B) Lactate from muscles to liver

C) Lactate from liver to muscles

D) Glucose from muscles to liverGlucose from muscles to liver

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5. Glycogen synthetase activity is depressed
by

A) Fructokinase

B) Insulin

C) Cyclic AMP

D) Glucose

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6. Ethanol decreases gluconeogenesis by

A) Inhibiting glucose-6-phosphatase

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

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

D) Inhibiting PEP carboxykinase

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7. Gluconeogenesis is decreased by

A) Insulin

B) Glucagon

C) Epinephrine

D) Glucocorticoids

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8. Polyuria can occur in

A) High fever

B) Diarrhea

C) Acute glomerulonephritis Acute glomerulonephritis

D) Diabetes mellitus

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9. An amphibolic pathway among the
following is

A) Citirc acid cycle

B) HMP shunt

C) Glycolysis

D) Gluconeogenesis

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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) Epinephrine

C) Testosterone

D) Insulin

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11. Uridine diphosphate glucose (UDPG) is

A) Required for metabolism of galactose

B) A substrate for glycogen synthetase

C) All of the above

D) Required for synthesis of glucuronic acid

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12. The reaction succinyl COA to succinate
requires

A) NADP+

B) ADP

C) CDP

D) GDP

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13. Lactate formed in muscles can be utilised
through

A) Citric acid cycl

B) Rapoport-Luebeling cycle

C) Glucose-alanine cycle

D) Cori’s cycle

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14. The following is actively absorbed in the
intestine

A) Fructose

B) None of these

C) Mannose

D) Galactose

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15. Specific gravity of urine is decreased in

A) Chronic glomerulonephritis

B) Acute glomerulonephritis

C) Diarrhea

D) Diabetes mellitus

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

A) Phosphofructokinase-2

B) Phosphofructokinase-1

C) Fructose-1, 6-biphosphatase

D) Fructose biphosphate isomerase

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18. Galactose on oxidation with conc. HNO3
produces

A) Saccharo Lactone

B) Gluconic acid

C) Mucic acid

D) Saccharic acid

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

A) Dihydroxyacetone phosphorylase

B) Phosphotriose isomerase

C) Triose isomerase

D) Diphosphotriose isomerase

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20. Pyruvate carboxylase is regulated by

A) Repression

B) Induction

C) All of these

D) Allosteric regulation

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21. Excessive intake of ethanol increases the
ratio

A) NAD+ : NADH

B) FAD : FADH2

C) NADH : NAD+

D) FADH2 : FAD

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

A) All of these

B) Liver

C) Erythrocytes

D) Brain

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23. The carrier of the citric acid cycle is

A) Succinate

B) Fumarate

C) Oxaloacetate

D) Malate

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24. Hexokinase has a high affinity for glucose
than

A) All of the above

B) Galactokinase

C) Glucokinase

D) Fructokinase

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25. Glycogenin is

A) Protein primer for glycogen synthesis

B) Intermediate in glycogen breakdown

C) Uncoupler of oxidative phosphorylation

D) Polymer of glycogen molecules

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26. Glucose-6-phosphatase is not present in

A) Muscles and adipose tissue

B) Kidneys and adipose tissue

C) Kidneys and muscles

D) Liver and kidneys

Your score is

The average score is 24%

Carbohydrates Biochemistry Set 1

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