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Vitamins and Coenzymes

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

scurvy
anemia
cataract
beri-beri

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Vitamins and Coenzymes
Vitamin B12 (Cobalamin) is only synthesized by

plants
fishes
micro-organisms
animals

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

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

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

ferredoxin
pyridoxal phosphat
pyrophosphate
FAD

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Vitamins and Coenzymes
Vitamins are essential because the organism

can't synthesize these compounds at all
None of these
can synthesize these compounds partially
can't synthesize these compounds in the adequate amounts

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

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

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