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Vitamins and Coenzymes

Vitamins and Coenzymes
Ascorbic acid acts as an

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

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

tetrahydrofolic acid
dihydrofolic acid
trihydrofolic acid
hydrofolic acid

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

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

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Vitamins and Coenzymes
A deficiency of Vitamin K results in a decreased level of

prothrombin
fibrin
fibrinogen
thrombin

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

vitamin A
vitamin K
niacin
vitamin C

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Vitamins and Coenzymes
The vitamin riboflavin is part of the __________ molecule.

ferredoxin
pyridoxal phosphat
FAD
pyrophosphate

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