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Vitamins and Coenzymes

Vitamins and Coenzymes
An enzyme, L-folate reductase reduces folic acid to

hydrofolic acid
tetrahydrofolic acid
dihydrofolic acid
trihydrofolic acid

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

pyridoxal phosphat
ferredoxin
FAD
pyrophosphate

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

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

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Vitamins and Coenzymes
Which of these is a symptom of vitamin A deficiency?

Impaired taste perception
Blindness
Impaired blood clotting
Osteoporosis

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Vitamins and Coenzymes
The symptoms of retinol excess are

bone fragility
weakness
all of these
nausea

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Vitamins and Coenzymes
Vitamin-D deficiency can cause

rickets
beri-beri
pernicious anemia
cataract

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