Biochemistry - Vitamins and Coenzymes

Exercise :: Vitamins and Coenzymes - Section 1

  • Vitamins and Coenzymes - Section 1
16. 

An early sign of retinol deficiencies in man is

A. night blindness
B. keratinization
C. xeropthalmia
D. none of these

Answer: Option A

Explanation:

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17. 

An enzyme, L-folate reductase reduces folic acid to

A. hydrofolic acid
B. dihydrofolic acid
C. trihydrofolic acid
D. tetrahydrofolic acid

Answer: Option B

Explanation:

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18. 

What compound of raw egg white causes a syndrome similar to vitamin B deficiency?

A. Avidin
B. Betabindin
C. Ovalbumin
D. Albumin

Answer: Option A

Explanation:

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19. 

The disease Beriberi is due to a dietary deficiency in

A. vitamin B1 (thiamine)
B. vitamin B2 (riboflavin)
C. vitamin B6 (pyridoxine)
D. vitamin B12

Answer: Option A

Explanation:

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20. 

Which of these is a symptom of vitamin A deficiency?

A. Osteoporosis
B. Impaired taste perception
C. Blindness
D. Impaired blood clotting

Answer: Option C

Explanation:

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