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Vitamins and Coenzymes

Vitamins and Coenzymes
An early sign of retinol deficiencies in man is

none of these
night blindness
xeropthalmia
keratinization

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

Impaired taste perception
Impaired blood clotting
Osteoporosis
Blindness

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Vitamins and Coenzymes
Which of these is a vitamin A precursor?

Pyridoxine
Cobalamin
Beta-Carotene
Thiamine

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Vitamins and Coenzymes
Acyl carrier protein (ACP) plays an important role in the biosynthesis of

amino acids
carbohydrates
fatty acids
sugars

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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
Lipoic acid exists in

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

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