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Vitamins and Coenzymes

Vitamins and Coenzymes
E.coli ACP has its molecular weight as around

90,000
19000
9000
39000

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Vitamins and Coenzymes
Selenium is an essential component of the enzyme glutathione peroxidase which

reduces toxic hydoperoxycompounds in tissues
scavenges toxic hydoperoxycompounds in tissues
None of these
oxidizes toxic hydoperoxycompounds in tissues

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

xeropthalmia
keratinization
none of these
night blindness

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Vitamins and Coenzymes
Ascorbic acid acts as an

reducing agent
oxidizing and reducing agent both
None of these
oxidizing agent

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

Thiamine
Beta-Carotene
Pyridoxine
Cobalamin

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

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

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