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Vitamins and Coenzymes

Vitamins and Coenzymes
Ascorbic acid acts as an

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

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Vitamins and Coenzymes
A fat-soluble vitamin that regulates blood clotting is

vitamin K
vitamin A
niacin
vitamin C

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Vitamins and Coenzymes
Lipoic acid exists in

reduced form
oxidized form
oxidized and reduced form both
none of these

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Vitamins and Coenzymes
Vitamin-D deficiency can cause

cataract
pernicious anemia
beri-beri
rickets

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Vitamins and Coenzymes
Biotin occurs mainly in combined forms bound to protein through

ε-N-lysine moiety
ε-N-lipoyl - L-lysine
ε-S-lysine moiety
ε-N-biotinyl-L-lysine

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

hydrofolic acid
dihydrofolic acid
trihydrofolic acid
tetrahydrofolic acid

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