What amino acid is used to synthesize the neurotransmitter serotonin and the vitamin niacin?
A) Glycine
B) Tyrosine
C) Methionine
D) Tryptophan
E) Valine
Correct Answer:
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Q26: When amino acids are deaminated, the immediate
Q27: Approximately how much urea (g) can be
Q28: What is meant by protein turnover?
A)Nitrogen equilibrium
B)The
Q29: What function does a buffer perform?
A)It helps
Q30: What is the usual state of nitrogen
Q32: Which of the following may be used
Q33: What is opsin?
A)An antigen
B)An antibody
C)A light-sensitive protein
D)A
Q34: The process whereby messenger RNA is made
Q35: A common genetic variation which causes a
Q36: What is the amino acid pool?
A)The total
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