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) Muscles and adipose tissue

B) Liver and kidneys

C) Kidneys and adipose tissue

D) Kidneys and muscles

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2. 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) Dissaccharides

C) Polysaccharides

D) Monosaccharides

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3. 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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4. 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

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5. Specific gravity of urine is decreased in

A) Diarrhea

B) Acute glomerulonephritis

C) Chronic glomerulonephritis

D) Diabetes mellitus

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6. Hexokinase has a high affinity for glucose
than

A) Fructokinase

B) Glucokinase

C) Galactokinase

D) All of the above

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7. Lactate formed in muscles can be utilised
through

A) Rapoport-Luebeling cycle

B) Citric acid cycl

C) Glucose-alanine cycle

D) Cori’s cycle

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8. Pyruvate carboxylase is regulated by

A) Repression

B) All of these

C) Allosteric regulation

D) Induction

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9. Gluconeogenesis is decreased by

A) Epinephrine

B) Insulin

C) Glucocorticoids

D) Glucagon

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10. 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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11. The carrier of the citric acid cycle is

A) Malate

B) Oxaloacetate

C) Fumarate

D) Succinate

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12. Cori’s cycle transfers

A) Pyruvate from liver to muscles

B) Glucose from muscles to liverGlucose from muscles to liver

C) Lactate from liver to muscles

D) Lactate from muscles to liver

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13. The following is actively absorbed in the
intestine

A) Galactose

B) None of these

C) Fructose

D) Mannose

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14. Glucose uptake by liver cells is

A) Energy-consuming

B) Insulin-dependent

C) Insulin-independent

D) A saturable process

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

A) Both of the above

B) Maltotriose

C) Neither of these

D) Maltose

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16. Glycogen synthetase activity is depressed
by

A) Insulin

B) Cyclic AMP

C) Fructokinase

D) Glucose

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17. An amphibolic pathway among the
following is

A) Gluconeogenesis

B) Citirc acid cycle

C) HMP shunt

D) Glycolysis

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18. Glycogenin is

A) Protein primer for glycogen synthesis

B) Polymer of glycogen molecules

C) Uncoupler of oxidative phosphorylation

D) Intermediate in glycogen breakdown

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19. Polyuria can occur in

A) Diabetes mellitus

B) High fever

C) Acute glomerulonephritis Acute glomerulonephritis

D) Diarrhea

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

A) Triose isomerase

B) Diphosphotriose isomerase

C) Dihydroxyacetone phosphorylase

D) Phosphotriose isomerase

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

A) All of these

B) Liver

C) Brain

D) Erythrocytes

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22. Excessive intake of ethanol increases the
ratio

A) NADH : NAD+

B) NAD+ : NADH

C) FADH2 : FAD

D) FAD : FADH2

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

A) Phosphofructokinase-2

B) Fructose biphosphate isomerase

C) Phosphofructokinase-1

D) Fructose-1, 6-biphosphatase

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24. Galactose on oxidation with conc. HNO3
produces

A) Gluconic acid

B) Saccharo Lactone

C) Mucic acid

D) Saccharic acid

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25. 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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26. The reaction succinyl COA to succinate
requires

A) CDP

B) ADP

C) GDP

D) NADP+

Your score is

The average score is 40%

Carbohydrates Biochemistry Set 1

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