The given diagram shows axon terminal. Select the option that correctly matches the steps in transmi

Question

The given diagram shows axon terminal. Select the option that correctly matches the steps in transmission of impulses (list i - vii) with the labellings ( $A-C$ ) in diagram.\ (i) Chemicals called neurotransmitters are released in the synaptic cleft through ion channels.\ (ii) When an impulse arrives at the axon terminal, it stimulates the movement of synaptic vesicles.\ (iii) Neurotransmitters are endocytosed into the neurons.\ (iv) The ion channels close with the binding of neurotransmitters to their specific receptors vesicles.\ (v) Synaptic vesicles move towards the membrane where they fuse with the plasma membrane.\ (vi) Neurotransmitters are released in the synaptic cleft.\ (vii) The released transmitters bind to their specific receptors on post-synaptic membrane.

Professor PC Thomas Classes · Answer

(c) : The axon terminals contain vesicles (A) filled with neurotransmitters. Action potential stimulates the movement of synaptic vesicles towards the membrane where they fuse with plasma membrane and release neurotransmitters in the synaptic left (B). Released neurotransmitters bind to their specific receptors (C) present on post synaptic membrane.