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Vitamins and Coenzymes

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

19000
90,000
39000
9000

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Vitamins and Coenzymes
Lipoic acid is a co-factor of the

both (a) and (b)
α-ketoglutaric dehydrogenase
pyruvic dehydrogenase
di-hydroorotate dehydrogenase

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

NAD+
pyridoxal phosphate
pyrophosphate
ferredoxin

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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.

adenine
5-6 dimethylbenzimidazole
cyanocobalamin
hydroxycobalamin

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Vitamins and Coenzymes
The most prominent role that tocopherol has in in-vitro systems is as a strong

antioxidants
reducing agent
oxidizing agent
all of these

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Vitamins and Coenzymes
Ascorbic acid acts as an

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

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