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Vitamins and Coenzymes

Vitamins and Coenzymes
Which of the following are reduced coenzymes?

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

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Vitamins and Coenzymes
The symptoms of retinol excess are

weakness
nausea
all of these
bone fragility

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

Iron
Cobalt
Copper
Zinc

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

beri-beri
cataract
rickets
pernicious anemia

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

none of these
plants
plants and animals both
animal

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Vitamins and Coenzymes
Vitamin B12 (Cobalamin) is only synthesized by

plants
fishes
micro-organisms
animals

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