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Vitamins and Coenzymes

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

dihydrofolic acid
tetrahydrofolic acid
trihydrofolic acid
hydrofolic acid

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

pyruvic dehydrogenase
α-ketoglutaric dehydrogenase
both (a) and (b)
di-hydroorotate 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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Vitamins and Coenzymes
Main function of insulin hormone is to

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

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Vitamins and Coenzymes
Lipoic acid exists in

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

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Vitamins and Coenzymes
Dihydroorotate dehydrogenase contains

2 flavins and 2 atoms of iron per molecule
4 flavins and 2 atoms of iron per molecule
2 flavins and 4 atoms of iron per molecule
4 flavins and 4 atoms of iron per molecule

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