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Vitamins and Coenzymes

Vitamins and Coenzymes
Which of the following are reduced coenzymes?

NAD+ and FAD
NADH and FADH2
Coenzyme A and ubiquinone
ATP and GTP

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Vitamins and Coenzymes
Which of these is a symptom of vitamin A deficiency?

Impaired taste perception
Blindness
Osteoporosis
Impaired blood clotting

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

micro-organisms
fishes
plants
animals

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Vitamins and Coenzymes
What metal ion is specifically bound by vitamin B12?

Cobalt
Zinc
Copper
Iron

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

Pyridoxine
Pyridoxal
All of these
Pyridoxamine

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

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

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