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Vitamins and Coenzymes

Vitamins and Coenzymes
Which of these hormones is a catecholamine?

Follitropin
Tetrahydrofolate
Norepinephrine
Tetraiodothyronine

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

Albert Szent-Gyorgyi
Kerry Mull is
Linus Pauling
Paul Berg

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Vitamins and Coenzymes
Ascorbic acid acts as an

oxidizing and reducing agent both
None of these
reducing agent
oxidizing agent

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

pyridoxal phosphate
NAD+
ferredoxin
pyrophosphate

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Vitamins and Coenzymes
Lipoic acid exists in

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

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Vitamins and Coenzymes
In one iron-metalloflavoprotein, the iron is present as a

both (a) and (b)
flavin moiety
nonheme type
heme-protein

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