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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
Selenium is an essential component of the enzyme glutathione peroxidase which

scavenges toxic hydoperoxycompounds in tissues
oxidizes toxic hydoperoxycompounds in tissues
None of these
reduces toxic hydoperoxycompounds in tissues

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

prothrombin
fibrin
fibrinogen
thrombin

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

animal
plants
plants and animals both
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
Vitamin B12 is useful in the prevention and treatment of

beri-beri
cataract
scurvy
pernicious anemia

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