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Vitamins and Coenzymes

Vitamins and Coenzymes
A deficiency of niacin causes

anemia
cataract
pellagra
scurvy

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Vitamins and Coenzymes
The occurrence of metals such as iron or molybdenum in some flavoproteins can

de-stabilize the semiquinone
stabilize the semiquinone
all of these
form chelation

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

night blindness
keratinization
none of these
xeropthalmia

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Vitamins and Coenzymes
Vitamin B12 (Cobalamin) is only synthesized by

plants
fishes
animals
micro-organisms

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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
Who discovered vitamin C (ascorbic acid)?

Paul Berg
Kerry Mull is
Albert Szent-Gyorgyi
Linus Pauling

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