Ncert Exercises & Solutions

24. What is the difference between electrical transmission and chemical transmission ?

Differences between electrical transmission and chemical transmission are as given below

Electrical Transmission

Chemical Transmission

It occurs at electric synapse.

Synaptic cleft may or may not be present.

At electrical synapses, electrical current can flow directly from one neuron into the other across these synapses.

Impulse transmission across an electrical transmission is always faster.

It occurs at chemical synapse.

Synaptic cleft is present.

At chemical synapse, neurotransmitter from pre-synaptic neurons transfer to post-synaptic neurons leading to transmission of impulse.

Chemical transmission is slower.