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Vitamins and Coenzymes

Vitamins and Coenzymes
Which of these molecules is vitamin H?

Carnitine
None of these
Folic acid
Biotin

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Vitamins and Coenzymes
The disease Beriberi is due to a dietary deficiency in

vitamin B6 (pyridoxine)
vitamin B2 (riboflavin)
vitamin B1 (thiamine)
vitamin B12

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

thrombin
prothrombin
fibrin
fibrinogen

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

NAD+
pyrophosphate
ferredoxin
pyridoxal phosphate

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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
In one iron-metalloflavoprotein, the iron is present as a

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

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