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Vitamins and Coenzymes

Vitamins and Coenzymes
β-carotene together with α-carotene, γ-carotene and cryptoxanthine are synthesized by

none of these
animal
plants
plants and animals both

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

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

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

ferredoxin
NAD+
pyridoxal phosphate
pyrophosphate

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Vitamins and Coenzymes
Lipoic acid exists in

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

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Vitamins and Coenzymes
Which of the following are reduced coenzymes?

NAD+ and FAD
ATP and GTP
Coenzyme A and ubiquinone
NADH and FADH2

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Vitamins and Coenzymes
Vitamin-D deficiency can cause

rickets
pernicious anemia
beri-beri
cataract

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