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Vitamins and Coenzymes

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

thrombin
fibrinogen
fibrin
prothrombin

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Vitamins and Coenzymes
Which of the following are reduced coenzymes?

NADH and FADH2
Coenzyme A and ubiquinone
NAD+ and FAD
ATP and GTP

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Vitamins and Coenzymes
Dihydroorotate dehydrogenase contains

2 flavins and 4 atoms of iron per molecule
2 flavins and 2 atoms of iron per molecule
4 flavins and 2 atoms of iron per molecule
4 flavins and 4 atoms of iron per molecule

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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
In one iron-metalloflavoprotein, the iron is present as a

nonheme type
both (a) and (b)
flavin moiety
heme-protein

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Vitamins and Coenzymes
The symptoms of retinol excess are

all of these
bone fragility
weakness
nausea

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