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PROTEINS AND PROTEIN METABOLISM- Part 12
See all quizzes of PROTEINS AND PROTEIN METABOLISM- Part 12 here:
1. Egg is rich in all of the following except
(A) Cholesterol (B) Saturated fatty acids
(C) Ascorbic acid (D) Calcium
2. A phosphoprotein present in egg is
(A) Casein (B) Albumin
(C) Ovoglobulin (D) Ovovitellin
46 MCQs IN BIOCHEMISTRY
3. Consumption of raw eggs can cause
deficiency of
(A) Calcium (B) Lipoic acid
(C) Biotin (D) Vitamin A
4. Egg is poor in
(A) Essential amino acids
(B) Carbohydrates
(C) Avidin
(D) Biotin
5. Cholesterol is present in all the following
except
(A) Milk (B) Fish
(C) Egg white (D) Egg yolk
6. Meat is rich in all of the following except
(A) Iron (B) Fluorine
(C) Copper (D) Zinc
7. Kwashiorkor occurs when the diet is
severely deficient in
(A) Iron (B) Calories
(C) Proteins (D) Essential fatty acids
8. Clinical features of Kwashiorkor include
all of the following except
(A) Mental retardation (B) Muscle wasting
(C) Oedema (D) Anaemia
9. Kwashiorkor usually occurs in
(A) The post-weaning period
(B) Pregnancy
(C) Lactation
(D) Old age
10. Marasmus occurs from deficient intake of
(A) Essential amino acids
(B) Essential fatty acids
(C) Calories
(D) Zinc
11. Marasmus differs from Kwashiorkor in
the which of these following respect
(A) Mental retardation occurs in kwashiorkor but
not in marasmus
(B) Growth is retarded in kwashiorkor but not in
marasmus
(C) Muscle wasting occurs in marasmus but not
kwashiorkor
(D) Subcutaneous fat disappears in marasmus
but not in kwashiorkor
12. Energy reserves of an average well-fed
adult man are about
(A) 50,000 kcal (B) 100,000 kcal
(C) 200,000 kcal (D) 300,000 kcal
13. During starvation, the first reserve
nutrient to be depleted is
(A) Glycogen (B) Proteins
(C) Triglycerides (D) Cholesterol
14. Synthesis of the following enzymes is
increased during starvation.
(A) Digestive enzymes
(B) Gluconeogenic enzymes
(C) Urea cycle enzymes
(D) Glucokinase
15. In hypoparathyroidism
(A) Plasma calcium and inorganic phosphorous
are low
(B) Plasma calcium and inorganic phosphorous
are high
(C) Plasma calcium is low and inorganic
phosphorous high
(D) Plasma calcium is high and inorganic
phosphorous low
16. The number of amino acid residues in
calcitonin in
(A) 9 (B) 32
(C) 51 (D) 84
17. Calcitonin is synthesised in
(A) Parathyroid glands
(B) Thyroid gland
(C) Pars intermedia of pituitary
(D) Adrenal cortex
18. Plasma calcium is lowered by
(A) Parathormone (B) Calcitonin
(C) Aldosterone (D) Deoxycorticosterone
PROTEINS AND PROTEIN METABOLISM 47
19. α Cells of Islets of Langerhans secrete
(A) Insulin (B) Glucagon
(C) Somatostatin (D) Cholecystokinin
20. A/G ratio is
(A) Strength of proteins
(B) ratio of serum proteins
(C) ratio of ceruloplasmin
(D) None of these
21. Insulin is made up of
(A) A single polypeptide chain having 51 amino
acid residues
(B) A single polypeptide chain having 84 amino
acid residues
(C) A-chain having 21 and B-chain having 30
amino acid residues
(D) A-chain having 30 and B-chain having 21
amino acid residues
22. The number of amino acid residues in preproinsulin
is
(A) 51 (B) 84
(C) 109 (D) 119
23. Pre-proinsulin contains a signal sequence
having
(A) 9 amino acid residues
(B) 19 amino acid residues
(C) 27 amino acid residues
(D) 33 amino acid residues
24. The number of intra-chain disulphide
bonds in pro-insulin:
(A) One (B) Two
(C) Three (D) Four
25. Pentagastrin is a
(A) Naturally occurring form of gastrin
(B) Inactive metabolite of gastrin
(C) Active metabolite of gastrin
(D) Synthetic form of gastrin
26. Secretion of gastrin is evoked by
(A) Entry of food into stomach
(B) Vagal stimulation
(C) Lower aliphatic alcohols
(D) All of these
27. Gastrin stimulates
(A) Gastric motility (B) Gastric secretion
(C) Both (A) and (B) (D) None of these
28. Secretin is made up of
(A) 17 amino acids (B) 27 amino acids
(C) 37 amino acids (D) 47 amino acids
29. Secretin causes all of the following except
(A) Secretion of pancreatic juice
(B) Secretion of bile
(C) Inhibition of gastric secretion
(D) Stimulation of intestinal motility
30. All of the following statements about
cholecystokinin pancreozymin are true
except
(A) It is secreted by mucosa of small intestine
(B) It stimulates secretion of pancreatic juice rich
in enzymes
(C) It stimulates contraction of gall bladder
(D) It inhibits gastric motility
