Question

Assertion Arival of an impulse at the axon terminal stimulates the release of neurotransmitters in synaptic cleft.
Reason These neurotransmitters are responible for the opening of ion channels.
A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
C. Assertion is true, but Reason is false.
D. Both Assertion and Reason are false.

Answer 1

Correct Answer - B
When an impulse reaches axon terminal the synaptic vesicles moves towards plasma membrane of fuse and release their neurotransmitters in synaptic cleft.
These neurotransmitters bind to specific receptors on post synaptic membrane which open ion channels allowing entry of ions to generate a new potential.