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Vitamins and Coenzymes

Vitamins and Coenzymes
β-carotene together with α-carotene, γ-carotene and cryptoxanthine are synthesized by

plants and animals both
none of these
plants
animal

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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
The symptoms of retinol excess are

nausea
weakness
all of these
bone fragility

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Vitamins and Coenzymes
Who discovered vitamin C (ascorbic acid)?

Linus Pauling
Kerry Mull is
Albert Szent-Gyorgyi
Paul Berg

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Vitamins and Coenzymes
In one iron-metalloflavoprotein, the iron is present as a

flavin moiety
both (a) and (b)
nonheme type
heme-protein

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

Zinc
Copper
Iron
Cobalt

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