Select the incorrect statement regarding synapses :
The membranes of presynaptic and postsynaptic neurons are in close proximity in an electrical synapse.
Electrical current can flow directly from one neuron into the other across the electrical synapse.
Chemical synapses use neurotransmitters
Impulse transmission across a chemical synapse is always faster than that across an electrical synapse.
Option (4) is the correct answer as impulse transmission across an electrical synapse is always faster than that across a chemical synapse. Chemical synapses use chemicals for transmission which are known as neurotransmitters. The membranes of presynaptic and postsynaptic neurons are in close proximity in an electrical synapse. In an electrical synapse, the transmission of the impulse occurs in the form of an electrical current from one neuron to the next neuron.
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