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Vitamins and Coenzymes

Vitamins and Coenzymes
The absence of ascorbic acid in the human diet gives rise to

pernicious anemia
beri-beri
rickets
cataract

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Vitamins and Coenzymes
In the co-enzyme B12the position occupied by a cyanide ion in vitamin B12 is bonded directly to the __________ of the ribose of adenosine.

adenine
5-6 dimethylbenzimidazole
hydroxycobalamin
cyanocobalamin

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

none of these
night blindness
keratinization
xeropthalmia

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Vitamins and Coenzymes
Vitamin-C is considered as a

none of these
water soluble
fat and water soluble
fat soluble

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Vitamins and Coenzymes
Ascorbic acid acts as an

oxidizing and reducing agent both
None of these
reducing agent
oxidizing agent

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Vitamins and Coenzymes
A deficiency of niacin causes

pellagra
cataract
anemia
scurvy

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