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Vitamins and Coenzymes

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

xeropthalmia
night blindness
none of these
keratinization

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

prothrombin
fibrinogen
fibrin
thrombin

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

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

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Vitamins and Coenzymes
Ascorbic acid acts as an

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

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Vitamins and Coenzymes
The disease Beriberi is due to a dietary deficiency in

vitamin B12
vitamin B6 (pyridoxine)
vitamin B1 (thiamine)
vitamin B2 (riboflavin)

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Vitamins and Coenzymes
Main function of insulin hormone is to

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

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