Which of the Following Enzymes Inactivates Norepinephrine

Question

Which of the following enzymes inactivates norepinephrine?
A) Enterokinase
B) Acetylcholinesterase
C) Nuclease
D) Monoamine oxidase
E) Proteinase

Accepted Answer

Monoamine oxidase is the enzyme responsible for the inactivation of norepinephrine, along with other monoamines such as serotonin and dopamine, by catalyzing their oxidation.