Biochemistry Classification and metabolism of amino acids cefd7837 The biosynthesis of Epinephrine from Norepinephrine requires A Pyridoxal phosphate B Biotin C Cytochrome P450 D S-adenosyl methionine High-Yield Explanation S-adenosyl methionine (SAM) is the methyl donor for the conversion of Norepinephrine to Epinephrine.