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Vitamins and Coenzymes

Vitamins and Coenzymes
The absence of ascorbic acid in the human diet gives rise to

beri-beri
rickets
cataract
pernicious anemia

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

scurvy
beri-beri
anemia
cataract

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Vitamins and Coenzymes
Vitamin B12 (Cobalamin) is only synthesized by

plants
micro-organisms
fishes
animals

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Vitamins and Coenzymes
Lipoic acid exists in

oxidized and reduced form both
none of these
oxidized form
reduced form

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Vitamins and Coenzymes
The prosthetic group biotin is a carrier of which type of molecule?

Ammonia
Sulfhydryl group
Methyl group
Activated carbon dioxide (CO2)

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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.

5-6 dimethylbenzimidazole
adenine
cyanocobalamin
hydroxycobalamin

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