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Vitamins and Coenzymes

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

Activated carbon dioxide (CO2)
Methyl group
Ammonia
Sulfhydryl group

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Vitamins and Coenzymes
Main function of insulin hormone is to

increase glycogen in liver
decrease blood sugar
decrease glycogen in liver
increase blood sugar

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Vitamins and Coenzymes
Vitamin K1 was first isolated from alfalalfa and has the phytyl side chain consisting of

six isoprene units
four isoprene units
nine isoprene units
four isoprene units

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

Iron
Cobalt
Copper
Zinc

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Vitamins and Coenzymes
An early sign of retinol deficiencies in man is

none of these
xeropthalmia
keratinization
night blindness

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Vitamins and Coenzymes
A deficiency of thiamin produces the disease known as

beri-beri
cataract
anemia
scurvy

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