Question
Niacin is a vitamin that was discovered in the search for the cause of pellagra, a skin dermatitis found in humans. Which amino acid can form niacin?a. Threonineb. Taurinec. Tryptophand. Tyrosine
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Lack of niacin in the diet can lead to dermatitis, diarrhea, dementia, and eventually, death. The niacin-deficiency disease is known as pellagra. Vitamin B-12 is necessary for myelination of nerves.
Niacin, which is also known as vitamin $\mathrm{B}_{3}$ and nicotinic acid, is found in many foods such as fish, beef, milk, and eggs. What is the heterocyclic amine in niacin?
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Which of the following are B vitamins? a. niacin b. retinol c. cyanocobalamin d. tocopherol e. ascorbic acid
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