Carbohydrates Biochemistry Set 1

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Biochemistry (Carbohydrates And Carbohydrate Metabolism Set 1)

MCQ

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1. Gluconeogenesis is decreased by

A) Glucagon

B) Insulin

C) Glucocorticoids

D) Epinephrine

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2. Cori’s cycle transfers

A) Lactate from liver to muscles

B) Pyruvate from liver to muscles

C) Lactate from muscles to liver

D) Glucose from muscles to liverGlucose from muscles to liver

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

A) Maltotriose

B) Both of the above

C) Maltose

D) Neither of these

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

A) Phosphofructokinase-2

B) Fructose-1, 6-biphosphatase

C) Fructose biphosphate isomerase

D) Phosphofructokinase-1

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

A) Phosphotriose isomerase

B) Dihydroxyacetone phosphorylase

C) Diphosphotriose isomerase

D) Triose isomerase

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6. The following is actively absorbed in the
intestine

A) Fructose

B) Galactose

C) None of these

D) Mannose

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7. 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

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8. Uridine diphosphate glucose (UDPG) is

A) Required for synthesis of glucuronic acid

B) A substrate for glycogen synthetase

C) Required for metabolism of galactose

D) All of the above

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

A) Progesterone

B) Insulin

C) Testosterone

D) Epinephrine

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10. Pyruvate carboxylase is regulated by

A) Induction

B) Repression

C) Allosteric regulation

D) All of these

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11. The reaction succinyl COA to succinate
requires

A) NADP+

B) CDP

C) GDP

D) ADP

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12. Polyuria can occur in

A) High fever

B) Acute glomerulonephritis Acute glomerulonephritis

C) Diabetes mellitus

D) Diarrhea

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

A) Erythrocytes

B) Brain

C) All of these

D) Liver

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14. Lactate formed in muscles can be utilised
through

A) Cori’s cycle

B) Rapoport-Luebeling cycle

C) Glucose-alanine cycle

D) Citric acid cycl

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15. Excessive intake of ethanol increases the
ratio

A) FADH2 : FAD

B) FAD : FADH2

C) NADH : NAD+

D) NAD+ : NADH

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16. Galactose on oxidation with conc. HNO3
produces

A) Saccharic acid

B) Mucic acid

C) Gluconic acid

D) Saccharo Lactone

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17. Hexokinase has a high affinity for glucose
than

A) Glucokinase

B) Galactokinase

C) Fructokinase

D) All of the above

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18. The carrier of the citric acid cycle is

A) Malate

B) Fumarate

C) Succinate

D) Oxaloacetate

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19. 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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20. Glucose uptake by liver cells is

A) Insulin-independent

B) Insulin-dependent

C) Energy-consuming

D) A saturable process

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21. 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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22. Glycogen synthetase activity is depressed
by

A) Cyclic AMP

B) Glucose

C) Fructokinase

D) Insulin

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23. Ethanol decreases gluconeogenesis by

A) Inhibiting glucose-6-phosphatase

B) Inhibiting PEP carboxykinase

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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24. An amphibolic pathway among the
following is

A) HMP shunt

B) Citirc acid cycle

C) Gluconeogenesis

D) Glycolysis

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

A) Von Gierke’s disease

B) McArdle’s disease

C) Cori’s disease

D) Pompe’s disease

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26. Specific gravity of urine is decreased in

A) Acute glomerulonephritis

B) Diarrhea

C) Diabetes mellitus

D) Chronic glomerulonephritis

Your score is

The average score is 27%

Carbohydrates Biochemistry Set 1

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