Question

Five events in the transmission of nerve impulse across the synapse -

A. Opening of specific ion channels allows the entry of ions, a new action potential is generated in the post-synaptic neuron.

B. Neurotransmitter binds to the receptor on post synaptic membrane

C. Synaptic vesicle fuses with pre-synaptic membrane, neurotransmitter releases into synaptic cleft.

D. Depolarization of pre-synaptic membrane

E. Arrival of action potential at axon terminal.

In which sequence do these events occur?

• A. E → D → C → B → A
• B. A → B → C → D → E
• C. A → B → D → C → E
• D. E → D → C → A → B

Answer 1

Answer: (A)

E → D → C → B → A