Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Impulse transmission across a chemical synapse is always faster than that across an electrical synapse. Reason (R): At a chemical synapse, the membranes of the pre- and post-synaptic neurons are separated by a fluid-filled space called synaptic cleft. In the light of the above statements, choose th

Step-by-step solution

Assertion is false because impulse transmission across an electrical synapse is always faster than that across a chemical synapse. In electrical synapses, the membranes are in very close proximity, allowing electrical current to flow directly from one neuron into the other. Reason is true because at a chemical synapse, the membranes of the pre- and post-synaptic neurons are indeed separated by a fluid-filled space called the synaptic cleft. This structural gap requires the release and diffusion of neurotransmitters