Which of the Following Is the Rate-Limiting Enzyme in Catecholamine

question 29

Multiple Choice

Which of the following is the rate-limiting enzyme in catecholamine biosynthesis?

• A) phenylalanine hydroxylase
• B) phenylethanolamine N-methyltransferase
• C) tyrosine hydroxylase
• D) DOPA decarboxylase
• E) catechol-o-methyl transferase

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