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Vitamins and Coenzymes

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

pyrophosphate
pyridoxal phosphate
ferredoxin
NAD+

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

Ammonia
Sulfhydryl group
Methyl group
Activated carbon dioxide (CO2)

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Vitamins and Coenzymes
Which of these molecules is vitamin H?

Biotin
Carnitine
Folic acid
None of these

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Vitamins and Coenzymes
Which of the following are reduced coenzymes?

Coenzyme A and ubiquinone
ATP and GTP
NADH and FADH2
NAD+ and FAD

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Vitamins and Coenzymes
Vitamin-C is considered as a

water soluble
none of these
fat and water soluble
fat soluble

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

night blindness
none of these
keratinization
xeropthalmia

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