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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
All of these
Pyridoxal

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Vitamins and Coenzymes
The prosthetic group biotin is a carrier of which type of molecule?

Ammonia
Activated carbon dioxide (CO2)
Sulfhydryl group
Methyl group

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Vitamins and Coenzymes
The vitamin niacin is part of the __________ molecule.

NAD+
ferredoxin
pyrophosphate
pyridoxal phosphate

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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
Ascorbic acid acts as an

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

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Vitamins and Coenzymes
Which of these molecules is vitamin H?

Biotin
Carnitine
None of these
Folic acid

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