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Vitamins and Coenzymes

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

ferredoxin
pyridoxal phosphat
FAD
pyrophosphate

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

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

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Vitamins and Coenzymes
Acyl carrier protein (ACP) plays an important role in the biosynthesis of

sugars
amino acids
fatty acids
carbohydrates

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Vitamins and Coenzymes
Dihydroorotate dehydrogenase contains

2 flavins and 2 atoms of iron per molecule
4 flavins and 4 atoms of iron per molecule
2 flavins and 4 atoms of iron per molecule
4 flavins and 2 atoms of iron per molecule

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

Pyridoxine
Cobalamin
Beta-Carotene
Thiamine

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Vitamins and Coenzymes
Vitamin-D deficiency can cause

pernicious anemia
rickets
beri-beri
cataract

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