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Vitamins and Coenzymes

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

Paul Berg
Albert Szent-Gyorgyi
Linus Pauling
Kerry Mull is

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Vitamins and Coenzymes
An early sign of retinol deficiencies in man is

night blindness
none of these
xeropthalmia
keratinization

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Vitamins and Coenzymes
Lipoic acid exists in

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

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

pyridoxal phosphate
pyrophosphate
NAD+
ferredoxin

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

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

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Vitamins and Coenzymes
Which of these hormones is a catecholamine?

Follitropin
Tetrahydrofolate
Tetraiodothyronine
Norepinephrine

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