biochemistry MCQs – Page 20

Practise focused biochemistry questions with marked answers for exam preparation and subject revision.

biochemistry Mcqs

381. True about prostaglandins is______________?
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A. All are true

B. Short acting

C. Present in many tissues

D. Some require C-AMP for their action

382. Synthesis of protein occurs on__________________?
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A. Poly ribosomes

B. Golgi bodies

C. Mitochondria

D. Nucleus

383. Adipose tissue releases free fatty acids in the________________?
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A. Active state

B. All of the above

C. Resting state

D. Fasting state

384. Prostaglandin synthesis is partially switched off by______________?
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A. Cyclo-oxygenase inhibition

B. Lipo oxygenase inhibition

C. Peroxidase

D. Reductase

385. Translation occurs at______________?
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A. Nucleus

B. Centrosome

C. Ribosome

D. Mitochondria

386. Average daily dose of vitamin C is____________?
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A. 100 150 mg

B. 60 100 mg

C. 50 60 mg

D. 30 40 mg

387. Urea is produced by the enzyme_____________?
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A. Glutaminase

B. Arginase

C. Uricase

D. Urease

388. Following are the essential amino acid______________?
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A. Phenylalanine, Arginine Methinonine

B. Phenylalanine, Tryptophan lysine

C. Phenylalanine, Valine, Glycine

D. Histidine, Glutamine, Valine

389. During phagocytosis, the metabolic process called respiratory burst involves the activation of_____________?
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A. Peroxidase

B. Dehydrogenase

C. Oxidase

D. Hydrolase

390. Alkaptonuria an inherited metabolic disorder is due to the deficiency of____________?
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A. Pheylalanine hydroxylase

B. Homogentisate oxidase

C. Tyrosine transaminase

D. Cystathionase

391. Heme in haemoglobin is____________?
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A. Between Helix C and D

B. Surrounded by non polar environment

C. Bonded to E7 histidine

D. Protoporophyrin IX

392. The reducing end of glutathione, the amino acid is_________________?
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A. Valine

B. Leucine

C. Glycine

D. Lycie

393. Vitamin associated with one carbon transfer is__________?
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A. Niacin

B. Ascorbic acid

C. Thiamine

D. Folic acid

394. The major driving force for formation of membrane lipid bilayer is____________?
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A. Not known

B. Hydrogen bonding

C. Vander wall forces

D. Hydrophobic interactions

395. The amino acid from which niacin is synthesized is______________?
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A. Tyrosine

B. Theronine

C. Tryptophan

D. Histidine

396. The abundant glycoprotein in the basement membrane and has binding domain for both ECM and cell-surface receptor is______________?
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A. Laminin

B. Fibronectin

C. Tenascin

D. E Cadherins

397. Daily requirement of iron in man is_____________?
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A. 10 mg

B. 1gm

C. 20 mg

D. 10 microgram

398. The patient suffered from hypogondism, failure to thrive, lose of taste and unable to maintain stability. This shows the deficiency of_____________?
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A. Chromium

B. Zinc

C. Copper

D. Potassium

399. In ECF main electrolyte is_______________?
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A. Proteins

B. Cl

C. K+

D. Na+

400. Which of the following organs cannot use ketone bodies_______________?
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A. Kidney

B. Spleen

C. Liver

D. Brain

Showing 381 to 400 of 448 mcqs