What enzyme catalyzes breakdown of catecholamines in the synaptic cleft and in the mitochondria of the axon terminal of the presynaptic cell?
A)monoamine oxidase
B)choline acetyl transferase
C)adenylate cyclase
D)catechol- O- methyltransferase
E)acetylcholinesterase

Question

Quizplus · Accepted Answer

Monoamine oxidase (MAO) is the enzyme responsible for the breakdown of catecholamines in the synaptic cleft and in the mitochondria of the axon terminal of the presynaptic cell.

What Enzyme Catalyzes Breakdown of Catecholamines in the Synaptic Cleft