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Vitamins and Coenzymes

Vitamins and Coenzymes
A deficiency of niacin causes

pellagra
anemia
cataract
scurvy

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

night blindness
xeropthalmia
keratinization
none of these

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

pyrophosphate
ferredoxin
pyridoxal phosphate
NAD+

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Vitamins and Coenzymes
The symptoms of retinol excess are

weakness
nausea
bone fragility
all of these

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Vitamins and Coenzymes
Lipoic acid exists in

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

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Vitamins and Coenzymes
Dihydroorotate dehydrogenase contains

4 flavins and 4 atoms of iron per molecule
2 flavins and 2 atoms of iron per molecule
4 flavins and 2 atoms of iron per molecule
2 flavins and 4 atoms of iron per molecule

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