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Vitamins and Coenzymes

Vitamins and Coenzymes
An enzyme, L-folate reductase reduces folic acid to

tetrahydrofolic acid
trihydrofolic acid
dihydrofolic acid
hydrofolic acid

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

9000
19000
39000
90,000

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Vitamins and Coenzymes
What compound of raw egg white causes a syndrome similar to vitamin B deficiency?

Ovalbumin
Avidin
Betabindin
Albumin

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

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

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

NAD+
pyrophosphate
ferredoxin
pyridoxal phosphate

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Vitamins and Coenzymes
In the co-enzyme B12the position occupied by a cyanide ion in vitamin B12 is bonded directly to the __________ of the ribose of adenosine.

5-6 dimethylbenzimidazole
cyanocobalamin
hydroxycobalamin
adenine

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