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Vitamins and Coenzymes

Vitamins and Coenzymes
Vitamin-C is considered as a

none of these
fat soluble
water soluble
fat and water soluble

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Vitamins and Coenzymes
Which of the following are reduced coenzymes?

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

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

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

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Vitamins and Coenzymes
In the co-enzyme B12the position occupied by a cyanide ion in vitamin B12 is bonded directly to the __________ of the ribose of adenosine.

hydroxycobalamin
adenine
cyanocobalamin
5-6 dimethylbenzimidazole

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Vitamins and Coenzymes
Vitamin B12 is useful in the prevention and treatment of

cataract
beri-beri
scurvy
pernicious anemia

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Vitamins and Coenzymes
A deficiency of thiamin produces the disease known as

cataract
anemia
beri-beri
scurvy

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