Question

what is the role of monoamine oxidase and acetylcholinesterase in the nervous system?
multiple choice
to serve as receptors for neurotransmitter molecules
to breakdown neurotransmitter molecules
to produce neurotransmitter molecules

Explanation:

Monoamine oxidase breaks down monoamine neurotransmitters (e.g., dopamine, serotonin). Acetylcholinesterase breaks down acetylcholine. Both are enzymes that terminate neurotransmitter action by degrading the neurotransmitter molecules. They do not serve as receptors (receptors are proteins that bind neurotransmitters) or produce neurotransmitter molecules (enzymes involved in production are different, e.g., choline acetyltransferase for acetylcholine synthesis).

Answer:

To breakdown neurotransmitter molecules