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Vitamins and Coenzymes

Vitamins and Coenzymes
E.coli ACP has its molecular weight as around

9000
39000
90,000
19000

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Vitamins and Coenzymes
In one iron-metalloflavoprotein, the iron is present as a

heme-protein
both (a) and (b)
nonheme type
flavin moiety

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

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

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

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

fishes
plants
animals
micro-organisms

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Vitamins and Coenzymes
Vitamin-D deficiency can cause

pernicious anemia
cataract
rickets
beri-beri

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