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Vitamins and Coenzymes

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

Cobalt
Zinc
Copper
Iron

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Vitamins and Coenzymes
The absence of ascorbic acid in the human diet gives rise to

beri-beri
rickets
cataract
pernicious anemia

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Vitamins and Coenzymes
Which of these hormones is a catecholamine?

Tetrahydrofolate
Norepinephrine
Follitropin
Tetraiodothyronine

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

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

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Vitamins and Coenzymes
Which of these molecules is vitamin H?

Carnitine
None of these
Folic acid
Biotin

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Vitamins and Coenzymes
Vitamin-D deficiency can cause

cataract
pernicious anemia
rickets
beri-beri

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