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Vitamins and Coenzymes

Vitamins and Coenzymes
Which of the following are reduced coenzymes?

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

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Vitamins and Coenzymes
The symptoms of retinol excess are

bone fragility
all of these
weakness
nausea

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Vitamins and Coenzymes
Dihydroorotate dehydrogenase contains

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

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

night blindness
xeropthalmia
none of these
keratinization

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Vitamins and Coenzymes
Vitamin-D deficiency can cause

pernicious anemia
cataract
beri-beri
rickets

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Vitamins and Coenzymes
Which of the following compounds/(s) belong/(s) to the vitamin B6 group?

Pyridoxine
All of these
Pyridoxamine
Pyridoxal

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