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Vitamins and Coenzymes

Vitamins and Coenzymes
Vitamin B12 is useful in the prevention and treatment of

pernicious anemia
beri-beri
scurvy
cataract

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Vitamins and Coenzymes
The reductant, NADH, transfers the electrons via a flavo-proteins to the specific disulfide (S-S) protein to form a dithiol (SH,SH) protein which converts vitamin

B12(Co) to B12(Co2+)
B12(Co2+)to B12(Co+)
B12(Co+)to B12(Co2+)
B12(Co2+)to B12(Co)

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Vitamins and Coenzymes
What metal ion is specifically bound by vitamin B12?

Copper
Cobalt
Iron
Zinc

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

beri-beri
pernicious anemia
cataract
rickets

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Vitamins and Coenzymes
An example of a digestive hormone is

gastrin
pepsin
lipase
amylase

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

cataract
scurvy
anemia
beri-beri

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