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Vitamins and Coenzymes

Vitamins and Coenzymes
Vitamin B12 is useful in the prevention and treatment of

scurvy
pernicious anemia
cataract
beri-beri

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Vitamins and Coenzymes
An enzyme, L-folate reductase reduces folic acid to

dihydrofolic acid
trihydrofolic acid
tetrahydrofolic acid
hydrofolic acid

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

Linus Pauling
Albert Szent-Gyorgyi
Kerry Mull is
Paul Berg

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

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Vitamins and Coenzymes
Vitamin-C is considered as a

fat and water soluble
fat soluble
water soluble
none of these

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

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

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