Question

Select the incorrect statement regarding synapses:

• A. Electrical current can flow directly from one neuron into the other across the electrical synapse
• B. Impulse transmission across a chemical synapse is always faster than the across an electrical synapse
• C. The membranes of presynaptic and postsynaptic neurons are in close proximity in an electrical synapse
• D. Chemical synapses use neurotransmitters

Answer 1

The correct option is B Impulse transmission across a chemical synapse is always faster than the across an electrical synapse

Synapses refer to the points of contact between neurons where information is passed from one neuron to the next.
Impulse transmission through synapse is accomplished by electric current. When the impulse reaches the pre synaptic knob, the impulse itself act as stimulus for the post synaptic neuron causing depolarization.

Impulse transmission across a chemical synapse is always slower than across an electrical synapse.