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Vitamins and Coenzymes

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

none of these
night blindness
keratinization
xeropthalmia

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Vitamins and Coenzymes
Ascorbic acid acts as an

oxidizing and reducing agent both
None of these
reducing agent
oxidizing agent

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Vitamins and Coenzymes
Main function of insulin hormone is to

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

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Vitamins and Coenzymes
Which of these is a vitamin A precursor?

Thiamine
Pyridoxine
Cobalamin
Beta-Carotene

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Vitamins and Coenzymes
The symptoms of retinol excess are

all of these
weakness
bone fragility
nausea

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Vitamins and Coenzymes
Vitamin-C is considered as a

none of these
fat soluble
fat and water soluble
water soluble

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