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Vitamins and Coenzymes

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

pyrophosphate
pyridoxal phosphat
FAD
ferredoxin

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

fibrin
fibrinogen
thrombin
prothrombin

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Vitamins and Coenzymes
Which of these is a vitamin A precursor?

Beta-Carotene
Cobalamin
Thiamine
Pyridoxine

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Vitamins and Coenzymes
E.coli ACP has its molecular weight as around

39000
90,000
19000
9000

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Vitamins and Coenzymes
Which of these molecules is vitamin H?

None of these
Biotin
Carnitine
Folic acid

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Vitamins and Coenzymes
The reductant, NADH, transfers the electrons via a flavo-proteins to the specific disulfide (S-S) protein to form a dithiol (SH,SH) protein which converts vitamin

B12(Co+)to B12(Co2+)
B12(Co) to B12(Co2+)
B12(Co2+)to B12(Co)
B12(Co2+)to B12(Co+)

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