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Vitamins and Coenzymes

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

Sulfhydryl group
Activated carbon dioxide (CO2)
Ammonia
Methyl group

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Vitamins and Coenzymes
Which of these molecules is vitamin H?

Carnitine
None of these
Folic acid
Biotin

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

plants and animals both
plants
none of these
animal

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Vitamins and Coenzymes
A deficiency of Vitamin K results in a decreased level of

fibrinogen
prothrombin
thrombin
fibrin

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

Copper
Zinc
Cobalt
Iron

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Vitamins and Coenzymes
The symptoms of retinol excess are

weakness
bone fragility
all of these
nausea

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