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Vitamins and Coenzymes

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

Pyridoxine
Pyridoxamine
Pyridoxal
All of these

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Vitamins and Coenzymes
Vitamins are essential because the organism

can't synthesize these compounds in the adequate amounts
None of these
can't synthesize these compounds at all
can synthesize these compounds partially

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

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

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Vitamins and Coenzymes
What metal ion is specifically bound by vitamin B12?

Cobalt
Iron
Copper
Zinc

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Vitamins and Coenzymes
Who discovered vitamin C (ascorbic acid)?

Paul Berg
Albert Szent-Gyorgyi
Linus Pauling
Kerry Mull is

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

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

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