Question

How do neurotransmitters change the action potential of a membrane?

Answer 1

Neurotransmitters bind to the membrane receptors and this causes the membrane to undergo depolarisation. Please note that as a result of depolarisation action potential 'develops'.

Explanation:

Attachment of neurotransmitters on membrane acts as stimulus. This triggers opening of sodium gates on the membrane. As positively charged ions flow inside, the membrane at stimulated point become depolarised.

In polarised condition outside of the membrane remains positively charged, and inside remains negatively charged. An action potential develops when this condition reverses.