The neurotransmitter which communicates between two neurons or between a neuron and a muscle is

Select the incorrect option for electrical synapses.

In the neural system,a chemical synapse shows a synaptic gap of about . . . . . . .

Identify the sequential steps occurring in a chemical synapse.

Which of the following is broken down by the enzyme $Acetylcholinesterase$?

Five events in the transmission of a nerve impulse across a synapse are given below:
$a.$ Certain ion channels open,allowing ions to enter and generate a new action potential in the post-synaptic neuron.
$b.$ Neurotransmitter molecules bind to receptors on the post-synaptic membrane.
$c.$ Synaptic vesicles fuse with the pre-synaptic membrane,and the neurotransmitter is released into the synaptic cleft. Depolarization of the pre-synaptic membrane is induced.
$d.$ An action potential reaches the axon terminal.
What is the correct sequence of these events?