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Vitamins and Coenzymes

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

animals
plants
fishes
micro-organisms

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

niacin
vitamin C
vitamin K
vitamin A

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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
cyanocobalamin
adenine
hydroxycobalamin

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Vitamins and Coenzymes
What compound of raw egg white causes a syndrome similar to vitamin B deficiency?

Ovalbumin
Avidin
Betabindin
Albumin

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Vitamins and Coenzymes
What metal ion is specifically bound by vitamin B12?

Copper
Iron
Zinc
Cobalt

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Vitamins and Coenzymes
Main function of insulin hormone is to

decrease glycogen in liver
decrease blood sugar
increase glycogen in liver
increase blood sugar

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