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Vitamins and Coenzymes

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

micro-organisms
animals
fishes
plants

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Vitamins and Coenzymes
An example of a digestive hormone is

amylase
lipase
gastrin
pepsin

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Vitamins and Coenzymes
Vitamin B12 is useful in the prevention and treatment of

cataract
pernicious anemia
scurvy
beri-beri

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Vitamins and Coenzymes
Which of these molecules is vitamin H?

Folic acid
Biotin
None of these
Carnitine

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Vitamins and Coenzymes
Dihydroorotate dehydrogenase contains

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

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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
cyanocobalamin
5-6 dimethylbenzimidazole
adenine

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