What amino acid is used to synthesize the neurotransmitter serotonin and the vitamin niacin?
A) glycine
B) tyrosine
C) methionine
D) tryptophan
Correct Answer:
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Q28: Edema is caused by _.
A)a decrease in
Q29: How do proteins function as regulators of
Q30: What are the products of transamination?
A)ammonia
Q31: Why do proteins often function as carriers
Q32: In the metabolism of amino acids for
Q34: What is opsin?
A)an antigen
B)an antibody
C)light-sensitive protein
D)a blood
Q36: What is the fate of excess dietary
Q37: What is the usual state of nitrogen
Q38: A result of transamination reactions is the
Q88: A person who is starving is losing
A)fat
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