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Vitamins and Coenzymes

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

Methyl group
Activated carbon dioxide (CO2)
Sulfhydryl group
Ammonia

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

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

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Vitamins and Coenzymes
Who discovered vitamin C (ascorbic acid)?

Paul Berg
Kerry Mull is
Linus Pauling
Albert Szent-Gyorgyi

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Vitamins and Coenzymes
Which of these molecules is vitamin H?

Biotin
None of these
Folic acid
Carnitine

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

scurvy
pernicious anemia
cataract
beri-beri

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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
hydroxycobalamin
adenine
cyanocobalamin

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