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Vitamins and Coenzymes

Vitamins and Coenzymes
An example of a digestive hormone is

pepsin
amylase
gastrin
lipase

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Vitamins and Coenzymes
Dihydroorotate dehydrogenase contains

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

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Vitamins and Coenzymes
Lipoic acid is a co-factor of the

di-hydroorotate dehydrogenase
both (a) and (b)
pyruvic dehydrogenase
α-ketoglutaric dehydrogenase

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Vitamins and Coenzymes
A fat-soluble vitamin that regulates blood clotting is

niacin
vitamin C
vitamin A
vitamin K

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Vitamins and Coenzymes
Vitamin K1 was first isolated from alfalalfa and has the phytyl side chain consisting of

four isoprene units
four isoprene units
six isoprene units
nine isoprene units

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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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MORE MCQ ON Vitamins and Coenzymes

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