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Vitamins and Coenzymes

Vitamins and Coenzymes
Vitamin-D deficiency can cause

beri-beri
rickets
pernicious anemia
cataract

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

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Vitamins and Coenzymes
Which of these is a vitamin A precursor?

Beta-Carotene
Cobalamin
Pyridoxine
Thiamine

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

Albumin
Ovalbumin
Betabindin
Avidin

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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
hydroxycobalamin
cyanocobalamin
adenine

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

micro-organisms
animals
fishes
plants

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