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Vitamins and Coenzymes

Vitamins and Coenzymes
A deficiency of Vitamin K results in a decreased level of

fibrinogen
prothrombin
fibrin
thrombin

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

night blindness
keratinization
none of these
xeropthalmia

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Vitamins and Coenzymes
The disease Beriberi is due to a dietary deficiency in

vitamin B2 (riboflavin)
vitamin B6 (pyridoxine)
vitamin B12
vitamin B1 (thiamine)

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Vitamins and Coenzymes
Dihydroorotate dehydrogenase contains

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

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

ferredoxin
FAD
pyrophosphate
pyridoxal phosphat

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Vitamins and Coenzymes
Vitamin-C is considered as a

none of these
fat and water soluble
water soluble
fat soluble

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