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Vitamins and Coenzymes

Vitamins and Coenzymes
Which of these molecules is vitamin H?

Biotin
Folic acid
Carnitine
None of these

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Vitamins and Coenzymes
Which of these hormones is a catecholamine?

Follitropin
Tetraiodothyronine
Tetrahydrofolate
Norepinephrine

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Vitamins and Coenzymes
Which of these is a vitamin A precursor?

Beta-Carotene
Cobalamin
Pyridoxine
Thiamine

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

pyrophosphate
NAD+
pyridoxal phosphate
ferredoxin

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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
six isoprene units
four isoprene units
nine isoprene units

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

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

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