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Vitamins and Coenzymes

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

fishes
animals
micro-organisms
plants

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Vitamins and Coenzymes
Dihydroorotate dehydrogenase contains

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

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

Betabindin
Albumin
Ovalbumin
Avidin

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Vitamins and Coenzymes
A deficiency of niacin causes

cataract
pellagra
anemia
scurvy

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Vitamins and Coenzymes
Ascorbic acid acts as an

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

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

Pyridoxamine
Pyridoxal
All of these
Pyridoxine

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