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VITAMINS AND COENZYMES

Vitamins and Coenzymes
An early sign of retinol deficiencies in man is

night blindness
xeropthalmia
none of these
keratinization

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Vitamins and Coenzymes
An enzyme, L-folate reductase reduces folic acid to

dihydrofolic acid
hydrofolic acid
trihydrofolic acid
tetrahydrofolic acid

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

Ovalbumin
Avidin
Albumin
Betabindin

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Vitamins and Coenzymes
The disease Beriberi is due to a dietary deficiency in

vitamin B6 (pyridoxine)
vitamin B1 (thiamine)
vitamin B12
vitamin B2 (riboflavin)

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Vitamins and Coenzymes
Which of these is a symptom of vitamin A deficiency?

Impaired blood clotting
Blindness
Impaired taste perception
Osteoporosis

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