Epinephrine is most closely related in structure to ____________________?
Correct answer: B. Tyrosine
- A. Niacin
- B. Tyrosine
- C. Methionine
- D. Glycerol
Explanation
Epinephrine is a catecholamine synthesized from the amino acid tyrosine through DOPA and dopamine. The other choices are not precursors of catecholamine hormones.
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