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Vitamins and Coenzymes

Vitamins and Coenzymes
A fat-soluble vitamin that regulates blood clotting is

vitamin K
vitamin C
vitamin A
niacin

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

plants
animal
plants and animals both
none of these

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

Ammonia
Activated carbon dioxide (CO2)
Sulfhydryl group
Methyl group

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Vitamins and Coenzymes
The symptoms of retinol excess are

weakness
bone fragility
nausea
all of these

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Vitamins and Coenzymes
Biotin occurs mainly in combined forms bound to protein through

ε-N-biotinyl-L-lysine
ε-N-lipoyl - L-lysine
ε-N-lysine moiety
ε-S-lysine moiety

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Vitamins and Coenzymes
Which of these molecules is vitamin H?

Biotin
None of these
Carnitine
Folic acid

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