What amino acid is used to synthesize the neurotransmitter epinephrine and the pigment melanin?

Question

Quizplus · Accepted Answer

Tyrosine is the amino acid that is used to synthesize both the neurotransmitter epinephrine (also known as adrenaline) and the pigment melanin. Epinephrine is involved in the "fight or flight" response, while melanin is responsible for skin and hair coloration. Glycine, methionine, tryptophan, and valine are not directly involved in the synthesis of these two molecules.

What Amino Acid Is Used to Synthesize the Neurotransmitter Epinephrine