Biochemistry - Vitamins and Coenzymes

Exercise :: Vitamins and Coenzymes - Section 1

  • Vitamins and Coenzymes - Section 1
36. 

A fat-soluble vitamin that regulates blood clotting is

A. vitamin A
B. vitamin K
C. vitamin C
D. niacin

Answer: Option B

Explanation:

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37. 

Which of these is a vitamin A precursor?

A. Cobalamin
B. Pyridoxine
C. Beta-Carotene
D. Thiamine

Answer: Option C

Explanation:

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38. 

In one iron-metalloflavoprotein, the iron is present as a

A. heme-protein
B. nonheme type
C. both (a) and (b)
D. flavin moiety

Answer: Option A

Explanation:

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39. 

Vitamin K1 was first isolated from alfalalfa and has the phytyl side chain consisting of

A. four isoprene units
B. six isoprene units
C. nine isoprene units
D. four isoprene units

Answer: Option A

Explanation:

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40. 

Which of these molecules is vitamin H?

A. Biotin
B. Carnitine
C. Folic acid
D. None of these

Answer: Option A

Explanation:

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