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Vitamins and Coenzymes

Vitamins and Coenzymes
Which of these hormones is a catecholamine?

Tetraiodothyronine
Norepinephrine
Follitropin
Tetrahydrofolate

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Vitamins and Coenzymes
The absence of ascorbic acid in the human diet gives rise to

rickets
cataract
beri-beri
pernicious anemia

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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
What metal ion is specifically bound by vitamin B12?

Copper
Cobalt
Zinc
Iron

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

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

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Vitamins and Coenzymes
Models of end-linked Osaka VI Fibrinogen dimers, a bilayer dimer is linked at

both ends by one disulfide bond
either end via a single disulfide bond
both ends by two disulfide bonds
either end via two disulfide bonds

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