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Vitamins and Coenzymes

Vitamins and Coenzymes
Which of these is a symptom of vitamin A deficiency?

Impaired taste perception
Blindness
Impaired blood clotting
Osteoporosis

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Vitamins and Coenzymes
The most prominent role that tocopherol has in in-vitro systems is as a strong

all of these
reducing agent
oxidizing agent
antioxidants

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Vitamins and Coenzymes
An enzyme, L-folate reductase reduces folic acid to

tetrahydrofolic acid
dihydrofolic acid
trihydrofolic acid
hydrofolic acid

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

keratinization
night blindness
xeropthalmia
none of these

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

Ammonia
Sulfhydryl group
Activated carbon dioxide (CO2)
Methyl group

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Vitamins and Coenzymes
Which of the following compounds/(s) belong/(s) to the vitamin B6 group?

Pyridoxal
Pyridoxamine
Pyridoxine
All of these

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