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Vitamins and Coenzymes

Vitamins and Coenzymes
A fat-soluble vitamin that regulates blood clotting is

vitamin C
niacin
vitamin K
vitamin A

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Vitamins and Coenzymes
Which of the following compounds/(s) belong/(s) to the vitamin B6 group?

Pyridoxine
Pyridoxamine
Pyridoxal
All of these

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Vitamins and Coenzymes
Dihydroorotate dehydrogenase contains

2 flavins and 2 atoms of iron per molecule
2 flavins and 4 atoms of iron per molecule
4 flavins and 2 atoms of iron per molecule
4 flavins and 4 atoms of iron per molecule

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Vitamins and Coenzymes
Vitamin-C is considered as a

none of these
fat soluble
water soluble
fat and water soluble

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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.

hydroxycobalamin
5-6 dimethylbenzimidazole
adenine
cyanocobalamin

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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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MORE MCQ ON Vitamins and Coenzymes

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