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Vitamins and Coenzymes

Vitamins and Coenzymes
A deficiency of thiamin produces the disease known as

beri-beri
scurvy
anemia
cataract

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Vitamins and Coenzymes
The most prominent role that tocopherol has in in-vitro systems is as a strong

antioxidants
reducing agent
all of these
oxidizing agent

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

pyrophosphate
pyridoxal phosphate
NAD+
ferredoxin

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Vitamins and Coenzymes
Dihydroorotate dehydrogenase contains

4 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
2 flavins and 2 atoms of iron per molecule

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Vitamins and Coenzymes
Biotin occurs mainly in combined forms bound to protein through

ε-S-lysine moiety
ε-N-biotinyl-L-lysine
ε-N-lipoyl - L-lysine
ε-N-lysine moiety

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Vitamins and Coenzymes
Lipoic acid exists in

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

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