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MCQs

Total Questions : 93 | Page 4 of 10 pages
Question 31. Vitamin-D deficiency can cause
  1.    pernicious anemia
  2.    rickets
  3.    beri-beri
  4.    cataract
 Discuss Question
Answer: Option B. -> rickets
Question 32. A deficiency of Vitamin K results in a decreased level of
  1.    fibrinogen
  2.    thrombin
  3.    fibrin
  4.    prothrombin
 Discuss Question
Answer: Option D. -> prothrombin
Question 33. What metal ion is specifically bound by vitamin B12?
  1.    Zinc
  2.    Iron
  3.    Cobalt
  4.    Copper
 Discuss Question
Answer: Option C. -> Cobalt
Question 34. Which of the following compounds/(s) belong/(s) to the vitamin B6 group?
  1.    All of these
  2.    Pyridoxal
  3.    Pyridoxine
  4.    Pyridoxamine
 Discuss Question
Answer: Option A. -> All of these
Question 35. The vitamin riboflavin, which occurs as a yellow pigment in egg yolk and milk become
  1.    more deep in color on oxidation and regained its color on reduction with Zn in acid
  2.    more deep in color on reduction with Zn in acid and regained its color on re-oxidation
  3.    colorless on reduction with Zn in acid and regained its color on re-oxidation
  4.    colorless on oxidation and regained its color on reduction with Zn in acid
 Discuss Question
Answer: Option C. -> colorless on reduction with Zn in acid and regained its color on re-oxidation
Question 36. A fat-soluble vitamin that regulates blood clotting is
  1.    vitamin K
  2.    vitamin C
  3.    vitamin A
  4.    niacin
 Discuss Question
Answer: Option A. -> vitamin K
Question 37. Vitamin K1 was first isolated from alfalalfa and has the phytyl side chain consisting of
  1.    six isoprene units
  2.    four isoprene units
  3.    nine isoprene units
  4.    four isoprene units
 Discuss Question
Answer: Option B. -> four isoprene units
Question 38. In one iron-metalloflavoprotein, the iron is present as a
  1.    heme-protein
  2.    nonheme type
  3.    both (a) and (b)
  4.    flavin moiety
 Discuss Question
Answer: Option A. -> heme-protein
Question 39. Which of these is a vitamin A precursor?
  1.    Thiamine
  2.    Beta-Carotene
  3.    Pyridoxine
  4.    Cobalamin
 Discuss Question
Answer: Option B. -> Beta-Carotene
Question 40. Which of these molecules is vitamin H?
  1.    None of these
  2.    Biotin
  3.    Folic acid
  4.    Carnitine
 Discuss Question
Answer: Option B. -> Biotin

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