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Vitamins and Coenzymes

Vitamins and Coenzymes
Vitamin-C is considered as a

fat and water soluble
water soluble
none of these
fat soluble

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

ferredoxin
NAD+
pyrophosphate
pyridoxal phosphate

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Vitamins and Coenzymes
The occurrence of metals such as iron or molybdenum in some flavoproteins can

stabilize the semiquinone
form chelation
de-stabilize the semiquinone
all of these

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Vitamins and Coenzymes
A deficiency of niacin causes

scurvy
cataract
pellagra
anemia

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

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

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

vitamin C
vitamin K
vitamin A
niacin

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