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MCQs

Total Questions : 93 | Page 7 of 10 pages
Question 61. . An early sign of retinol deficiencies in man is
  1.    night blindness
  2.    keratinization
  3.    xeropthalmia
  4.    none of these
 Discuss Question
Answer: Option A. -> night blindness
Question 62. . What compound of raw egg white causes a syndrome similar to vitamin B deficiency?
  1.    Avidin
  2.    Betabindin
  3.    Ovalbumin
  4.    Albumin
 Discuss Question
Answer: Option A. -> Avidin
Question 63. . An enzyme, L-folate reductase reduces folic acid to
  1.    hydrofolic acid
  2.    dihydrofolic acid
  3.    trihydrofolic acid
  4.    tetrahydrofolic acid
 Discuss Question
Answer: Option B. -> dihydrofolic acid
Question 64. . The disease Beriberi is due to a dietary deficiency in
  1.    vitamin B1 (thiamine)
  2.    vitamin B2 (riboflavin)
  3.    vitamin B6 (pyridoxine)
  4.    vitamin B12
 Discuss Question
Answer: Option A. -> vitamin B1 (thiamine)
Question 65. . Vitamin-C is considered as a
  1.    water soluble
  2.    fat soluble
  3.    fat and water soluble
  4.    none of these
 Discuss Question
Answer: Option A. -> water soluble
Question 66. . Which of these is a symptom of vitamin A deficiency?
  1.    Osteoporosis
  2.    Impaired taste perception
  3.    Blindness
  4.    Impaired blood clotting
 Discuss Question
Answer: Option C. -> Blindness
Question 67. . The vitamin niacin is part of the __________ molecule.
  1.    ferredoxin
  2.    pyridoxal phosphate
  3.    pyrophosphate
  4.    NAD+
 Discuss Question
Answer: Option D. -> NAD+
Question 68. .  E.coli ACP has its molecular weight as around
  1.    9000
  2.    19000
  3.    39000
  4.    90,000
 Discuss Question
Answer: Option A. -> 9000
Question 69. . The most prominent role that tocopherol has in in-vitro systems is as a strong
  1.    antioxidants
  2.    reducing agent
  3.    oxidizing agent
  4.    all of these
 Discuss Question
Answer: Option A. -> antioxidants
Question 70. . Dihydroorotate dehydrogenase contains
  1.    4 flavins and 4 atoms of iron per molecule
  2.    2 flavins and 4 atoms of iron per molecule
  3.    2 flavins and 2 atoms of iron per molecule
  4.    4 flavins and 2 atoms of iron per molecule
 Discuss Question
Answer: Option A. -> 4 flavins and 4 atoms of iron per molecule

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