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Vitamins and Coenzymes

Vitamins and Coenzymes
A deficiency of niacin causes

anemia
cataract
pellagra
scurvy

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

pernicious anemia
beri-beri
cataract
rickets

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Vitamins and Coenzymes
Ascorbic acid acts as an

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

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Vitamins and Coenzymes
β-carotene together with α-carotene, γ-carotene and cryptoxanthine are synthesized by

none of these
plants and animals both
plants
animal

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Vitamins and Coenzymes
In one iron-metalloflavoprotein, the iron is present as a

both (a) and (b)
nonheme type
heme-protein
flavin moiety

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Vitamins and Coenzymes
Which of these molecules is vitamin H?

Carnitine
Folic acid
None of these
Biotin

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