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Vitamins and Coenzymes

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

Pyridoxamine
Pyridoxine
Pyridoxal
All of these

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Vitamins and Coenzymes
Main function of insulin hormone is to

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

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Vitamins and Coenzymes
β-carotene together with α-carotene, γ-carotene and cryptoxanthine are synthesized by

plants
none of these
animal
plants and animals both

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Vitamins and Coenzymes
Vitamin K1 was first isolated from alfalalfa and has the phytyl side chain consisting of

four isoprene units
six isoprene units
four isoprene units
nine isoprene units

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

Thiamine
Cobalamin
Pyridoxine
Beta-Carotene

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

Osteoporosis
Impaired taste perception
Blindness
Impaired blood clotting

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