Rate limiting step in adrenaline synthesis is conversion of____________?
Correct answer: A. Tyrosine to dopa
- A. Tyrosine to dopa
- B. Phenylalanine to tyrosine
- C. Dopa to dopamine
- D. Dopamine to nor epinephrine
Explanation
Tyrosine hydroxylase converts tyrosine to DOPA and catalyses the rate-limiting step of catecholamine synthesis. The later steps produce dopamine and norepinephrine from DOPA and dopamine, respectively.
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