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Vitamins and Coenzymes

Vitamins and Coenzymes
Ascorbic acid acts as an

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

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

cataract
rickets
pernicious anemia
beri-beri

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Vitamins and Coenzymes
What metal ion is specifically bound by vitamin B12?

Iron
Copper
Zinc
Cobalt

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

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

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Vitamins and Coenzymes
Main function of insulin hormone is to

increase blood sugar
decrease blood sugar
decrease glycogen in liver
increase glycogen in liver

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Vitamins and Coenzymes
Vitamin B12 is useful in the prevention and treatment of

beri-beri
scurvy
pernicious anemia
cataract

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