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Vitamins and Coenzymes

Vitamins and Coenzymes
The symptoms of retinol excess are

bone fragility
all of these
nausea
weakness

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

plants
none of these
animal
plants and animals both

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Vitamins and Coenzymes
Vitamin-C is considered as a

fat soluble
fat and water soluble
none of these
water soluble

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Vitamins and Coenzymes
The prosthetic group biotin is a carrier of which type of molecule?

Methyl group
Sulfhydryl group
Activated carbon dioxide (CO2)
Ammonia

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

Iron
Cobalt
Zinc
Copper

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Vitamins and Coenzymes
The vitamin niacin is part of the __________ molecule.

ferredoxin
NAD+
pyrophosphate
pyridoxal phosphate

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