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Vitamins and Coenzymes

Vitamins and Coenzymes
Which of these molecules is vitamin H?

None of these
Carnitine
Folic acid
Biotin

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Vitamins and Coenzymes
In the co-enzyme B12the position occupied by a cyanide ion in vitamin B12 is bonded directly to the __________ of the ribose of adenosine.

hydroxycobalamin
adenine
5-6 dimethylbenzimidazole
cyanocobalamin

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

pyridoxal phosphat
FAD
ferredoxin
pyrophosphate

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Vitamins and Coenzymes
Models of end-linked Osaka VI Fibrinogen dimers, a bilayer dimer is linked at

both ends by one disulfide bond
either end via two disulfide bonds
either end via a single disulfide bond
both ends by two disulfide bonds

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Vitamins and Coenzymes
The symptoms of retinol excess are

nausea
bone fragility
weakness
all of these

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

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

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