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) Kidneys and muscles

C) Kidneys and adipose tissue

D) Liver and kidneys

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2. An amphibolic pathway among the
following is

A) Citirc acid cycle

B) Gluconeogenesis

C) Glycolysis

D) HMP shunt

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3. The carrier of the citric acid cycle is

A) Oxaloacetate

B) Malate

C) Fumarate

D) Succinate

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

A) Brain

B) Liver

C) Erythrocytes

D) All of these

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6. Glucose uptake by liver cells is

A) Insulin-independent

B) Insulin-dependent

C) Energy-consuming

D) A saturable process

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7. 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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8. Glycogenin is

A) Intermediate in glycogen breakdown

B) Polymer of glycogen molecules

C) Uncoupler of oxidative phosphorylation

D) Protein primer for glycogen synthesis

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

A) Both of the above

B) Neither of these

C) Maltose

D) Maltotriose

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10. 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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11. Gluconeogenesis is decreased by

A) Glucagon

B) Glucocorticoids

C) Epinephrine

D) Insulin

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12. Hexokinase has a high affinity for glucose
than

A) All of the above

B) Fructokinase

C) Glucokinase

D) Galactokinase

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13. Glycogen synthetase activity is depressed
by

A) Glucose

B) Insulin

C) Fructokinase

D) Cyclic AMP

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14. Specific gravity of urine is decreased in

A) Chronic glomerulonephritis

B) Acute glomerulonephritis

C) Diabetes mellitus

D) Diarrhea

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15. Pyruvate carboxylase is regulated by

A) Repression

B) All of these

C) Allosteric regulation

D) Induction

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

A) Testosterone

B) Epinephrine

C) Insulin

D) Progesterone

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17. Galactose on oxidation with conc. HNO3
produces

A) Mucic acid

B) Saccharic acid

C) Gluconic acid

D) Saccharo Lactone

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18. Excessive intake of ethanol increases the
ratio

A) FAD : FADH2

B) NAD+ : NADH

C) FADH2 : FAD

D) NADH : NAD+

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

A) Fructose-1, 6-biphosphatase

B) Phosphofructokinase-2

C) Phosphofructokinase-1

D) Fructose biphosphate isomerase

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

A) Pompe’s disease

B) McArdle’s disease

C) Cori’s disease

D) Von Gierke’s disease

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21. Ethanol decreases gluconeogenesis by

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

B) Inhibiting PEP carboxykinase

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

D) Inhibiting glucose-6-phosphatase

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22. Lactate formed in muscles can be utilised
through

A) Citric acid cycl

B) Rapoport-Luebeling cycle

C) Cori’s cycle

D) Glucose-alanine cycle

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23. Uridine diphosphate glucose (UDPG) is

A) Required for metabolism of galactose

B) Required for synthesis of glucuronic acid

C) A substrate for glycogen synthetase

D) All of the above

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24. The reaction succinyl COA to succinate
requires

A) ADP

B) CDP

C) NADP+

D) GDP

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25. Polyuria can occur in

A) Diabetes mellitus

B) High fever

C) Acute glomerulonephritis Acute glomerulonephritis

D) Diarrhea

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26. The following is actively absorbed in the
intestine

A) Fructose

B) Galactose

C) None of these

D) Mannose

Your score is

The average score is 24%

Carbohydrates Biochemistry Set 1

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