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VITAMINS AND COENZYMES

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

keratinization
night blindness
none of these
xeropthalmia

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

tetrahydrofolic acid
hydrofolic acid
dihydrofolic acid
trihydrofolic acid

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

Albumin
Ovalbumin
Betabindin
Avidin

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

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

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

Osteoporosis
Blindness
Impaired blood clotting
Impaired taste perception

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