Carbohydrate mcq questions

1. Gluconeogenesis is decreased by
(A) Glucagon (B) Epinephrine
(C) Glucocorticoids (D) Insulin

2. Lactate formed in muscles can be utilised through
(A) Rapoport-Luebeling cycle
(B) Glucose-alanine cycle
(C) Cori’s cycle
(D) Citric acid cycle

3. Glucose-6-phosphatase is not present in
(A) Liver and kidneys
(B) Kidneys and muscles
(C) Kidneys and adipose tissue
(D) Muscles and adipose tissue

4. Pyruvate carboxylase is regulated by
(A) Induction (B) Repression
(C) Allosteric regulation(D) All of these

5. Fructose-2, 6-biphosphate is formed by the action of
(A) Phosphofructokinase-1
(B) Phosphofructokinase-2
(C) Fructose biphosphate isomerase
(D) Fructose-1, 6-biphosphatase

6. The highest concentrations of fructose are found in
(A) Aqueous humor (B) Vitreous humor
(C) Synovial fluid (D) Seminal fluid

7. Glucose uptake by liver cells is
(A) Energy-consuming (B) A saturable process
(C) Insulin-dependent (D) Insulin-independent

8. Renal threshold for glucose is decreased in
(A) Diabetes mellitus (B) Insulinoma
(C) Renal glycosuria (D) Alimentary glycosuria

9. Active uptake of glucose is inhibited by
(A) Ouabain (B) Phlorrizin
(C) Digoxin (D) Alloxan

10. Glucose-6-phosphatase is absent or deficient in
(A) Von Gierke’s disease
(B) Pompe’s disease
(C) Cori’s disease
(D) McArdle’s disease

Answer
1. D 2. C 3. D 4. D 5. B 6. D 7. D 8. C 9. B 10. A

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