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Vitamins and Coenzymes

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

fibrin
fibrinogen
prothrombin
thrombin

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Vitamins and Coenzymes
Models of end-linked Osaka VI Fibrinogen dimers, a bilayer dimer is linked at

both ends by one disulfide bond
both ends by two disulfide bonds
either end via a single disulfide bond
either end via two disulfide bonds

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

Kerry Mull is
Albert Szent-Gyorgyi
Linus Pauling
Paul Berg

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

keratinization
none of these
xeropthalmia
night blindness

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

NAD+
ferredoxin
pyrophosphate
pyridoxal phosphate

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

Sulfhydryl group
Methyl group
Ammonia
Activated carbon dioxide (CO2)

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