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Vitamins and Coenzymes

Vitamins and Coenzymes
The symptoms of retinol excess are

all of these
nausea
bone fragility
weakness

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

niacin
vitamin K
vitamin C
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.

cyanocobalamin
5-6 dimethylbenzimidazole
adenine
hydroxycobalamin

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Vitamins and Coenzymes
Which of the following compounds/(s) belong/(s) to the vitamin B6 group?

Pyridoxamine
All of these
Pyridoxine
Pyridoxal

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

Sulfhydryl group
Activated carbon dioxide (CO2)
Ammonia
Methyl group

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Vitamins and Coenzymes
The disease Beriberi is due to a dietary deficiency in

vitamin B12
vitamin B1 (thiamine)
vitamin B2 (riboflavin)
vitamin B6 (pyridoxine)

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