This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET 2019, Subject name: Biochemistry
[{'content': 'Amino acid required for conversion of norepinephrine to epinephrine:- \nSelect and explain. \nA. Lysine, B. Phenyl-alanine, C. Methionine, D. Tryptophan', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Norepinephrine to Epinephrine conversion requires SAM (S-Adenosyl Methionine). Enzyme involved is Phenylethanolamine N-methyl transferase. Coisol is the activator. Synthesis of Catecholamines (Dopamine, NE and E) from Tyrosine. SAM (S - adenosyl methionine) is synthesized from dietary methionine with the help of enzyme METHIONINE ADENOSYL TRANSFERASE (MAT).', 'role': 'assistant'}]