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Vitamins and Coenzymes

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

oxidizing agent
all of these
reducing agent
antioxidants

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Vitamins and Coenzymes
Selenium is an essential component of the enzyme glutathione peroxidase which

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

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Vitamins and Coenzymes
The symptoms of retinol excess are

nausea
bone fragility
all of these
weakness

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Vitamins and Coenzymes
Vitamin B12 (Cobalamin) is only synthesized by

plants
micro-organisms
fishes
animals

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Vitamins and Coenzymes
Which of these molecules is vitamin H?

Folic acid
Biotin
None of these
Carnitine

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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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