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Vitamins and Coenzymes

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

sugars
carbohydrates
amino acids
fatty acids

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Vitamins and Coenzymes
Ascorbic acid acts as an

oxidizing and reducing agent both
oxidizing agent
None of these
reducing agent

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

cataract
anemia
scurvy
beri-beri

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

fishes
micro-organisms
animals
plants

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

ε-S-lysine moiety
ε-N-lipoyl - L-lysine
ε-N-lysine moiety
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(Co+)to B12(Co2+)
B12(Co2+)to B12(Co+)
B12(Co) to B12(Co2+)
B12(Co2+)to B12(Co)

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