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Vitamins and Coenzymes

Vitamins and Coenzymes
Lipoic acid exists in

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

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Vitamins and Coenzymes
E.coli ACP has its molecular weight as around

90,000
19000
9000
39000

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Vitamins and Coenzymes
Selenium is an essential component of the enzyme glutathione peroxidase which

None of these
oxidizes toxic hydoperoxycompounds in tissues
reduces toxic hydoperoxycompounds in tissues
scavenges toxic hydoperoxycompounds in tissues

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

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

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

vitamin K
niacin
vitamin A
vitamin C

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