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Question : Assertion:Electrical synapses are rare in our system. Reason:Impulse transmission across an electrical synapse is slower than that across a chemical synapse.

Answer»

If both ASSERTION and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.

Solution : Three are two types of stynapses, namely,electrical SYNAPSES and chemical synapses. At electrical synapses, the MEMBRANES of pre and post-synaptic neuons are in vey close proximity. Electrical current can flow directly form one neuron into the other across theses synapses. At a chemical synapse, the membranes of the pre and post-synatic neuron are sperated by a flud-filled space called neutransmitters are involved in the transmission across an electrical synapse is ALWAYS faster than that across a chemical synapse. Electrical synapses are RARE in our system.


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