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Vitamins and Coenzymes

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

Paul Berg
Kerry Mull is
Albert Szent-Gyorgyi
Linus Pauling

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Vitamins and Coenzymes
The vitamin niacin is part of the __________ molecule.

ferredoxin
NAD+
pyridoxal phosphate
pyrophosphate

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Vitamins and Coenzymes
Vitamin K1 was first isolated from alfalalfa and has the phytyl side chain consisting of

four isoprene units
four isoprene units
six isoprene units
nine isoprene units

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

Methyl group
Ammonia
Activated carbon dioxide (CO2)
Sulfhydryl group

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Vitamins and Coenzymes
Which of the following are reduced coenzymes?

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

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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
hydroxycobalamin
adenine

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