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Vitamins and Coenzymes

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

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

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

vitamin C
vitamin A
vitamin K
niacin

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

fibrin
fibrinogen
prothrombin
thrombin

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

trihydrofolic acid
tetrahydrofolic acid
dihydrofolic acid
hydrofolic acid

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

Cobalt
Iron
Copper
Zinc

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Vitamins and Coenzymes
Lipoic acid is a co-factor of the

pyruvic dehydrogenase
both (a) and (b)
di-hydroorotate dehydrogenase
α-ketoglutaric dehydrogenase

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MORE MCQ ON Vitamins and Coenzymes

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