Epinephrine is a derivative of which amino acid?

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Multiple Choice

Epinephrine is a derivative of which amino acid?

Explanation:
Epinephrine is produced from the amino acid tyrosine. The synthesis starts with tyrosine being hydroxylated to L-DOPA, then decarboxylated to dopamine, converted to norepinephrine, and finally methylated to epinephrine in the adrenal medulla. Phenylalanine can be converted to tyrosine, but it is not the direct precursor to epinephrine; serine and cysteine are not part of this catecholamine synthesis pathway.

Epinephrine is produced from the amino acid tyrosine. The synthesis starts with tyrosine being hydroxylated to L-DOPA, then decarboxylated to dopamine, converted to norepinephrine, and finally methylated to epinephrine in the adrenal medulla. Phenylalanine can be converted to tyrosine, but it is not the direct precursor to epinephrine; serine and cysteine are not part of this catecholamine synthesis pathway.

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