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MCQs

Total Questions : 93 | Page 6 of 10 pages
Question 51.  Acyl carrier protein (ACP) plays an important role in the biosynthesis of
  1.    fatty acids
  2.    amino acids
  3.    sugars
  4.    carbohydrates
 Discuss Question
Answer: Option A. -> fatty acids
Question 52.  A deficiency of thiamin produces the disease known as
  1.    beri-beri
  2.    scurvy
  3.    cataract
  4.    anemia
 Discuss Question
Answer: Option A. -> beri-beri
Question 53.  The absence of ascorbic acid in the human diet gives rise to
  1.    rickets
  2.    pernicious anemia
  3.    cataract
  4.    beri-beri
 Discuss Question
Answer: Option B. -> pernicious anemia
Question 54.  Vitamins are essential because the organism
  1.    can't synthesize these compounds at all
  2.    can synthesize these compounds partially
  3.    can't synthesize these compounds in the adequate amounts
  4.    none of the above
 Discuss Question
Answer: Option A. -> can't synthesize these compounds at all
Question 55. . The prosthetic group biotin is a carrier of which type of molecule?
  1.    Activated carbon dioxide (CO2)
  2.    Ammonia
  3.    Methyl group
  4.    Sulfhydryl group
 Discuss Question
Answer: Option A. -> Activated carbon dioxide (CO2)
Question 56. . Lipoic acid exists in
  1.    oxidized form
  2.    reduced form
  3.    oxidized and reduced form both
  4.    none of these
 Discuss Question
Answer: Option C. -> oxidized and reduced form both
Question 57. . Vitamin B12 is useful in the prevention and treatment of
  1.    pernicious anemia
  2.    scurvy
  3.    cataract
  4.    beri-beri
 Discuss Question
Answer: Option A. -> pernicious anemia
Question 58. . In the co-enzyme B12the position occupied by a cyanide ion in vitamin B12 is bonded directly to the __________ of the ribose of adenosine.
  1.    adenine
  2.    5-6 dimethylbenzimidazole
  3.    hydroxycobalamin
  4.    cyanocobalamin
 Discuss Question
Answer: Option A. -> adenine
Question 59. . An example of a digestive hormone is
  1.    lipase
  2.    pepsin
  3.    amylase
  4.    gastrin
 Discuss Question
Answer: Option D. -> gastrin
Question 60. . The reductant, NADH, transfers the electrons via a flavo-proteins to the specific disulfide (S-S) protein to form a dithiol (SH,SH) protein which converts vitamin
  1.    B12(Co2+)to B12(Co)
  2.    B12(Co) to B12(Co2+)
  3.    B12(Co2+)to B12(Co+)
  4.    B12(Co+)to B12(Co2+)
 Discuss Question
Answer: Option C. -> B12(Co2+)to B12(Co+)

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