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Vitamins and Coenzymes

Vitamins and Coenzymes
A deficiency of niacin causes

pellagra
scurvy
anemia
cataract

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Vitamins and Coenzymes
Vitamin K1 was first isolated from alfalalfa and has the phytyl side chain consisting of

nine isoprene units
six isoprene units
four isoprene units
four isoprene units

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

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

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Vitamins and Coenzymes
A fat-soluble vitamin that regulates blood clotting is

vitamin K
niacin
vitamin A
vitamin C

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Vitamins and Coenzymes
Main function of insulin hormone is to

increase blood sugar
decrease blood sugar
decrease glycogen in liver
increase glycogen in liver

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