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easyMCQNEET 20222026Biology
1 mark

Select the incorrect statement regarding synapses:

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

Solution & Step-by-step Explanation

Electrical synapses have gap junctions for direct flow. True.They allow direct current flow. True.Chemical synapses use chemicals like acetylcholine. True.Incorrect statement: Electrical synapses are always faster because there is no "synaptic delay" caused by neurotransmitter release and binding.

Practice this question

Try it yourself before checking the explanation above.

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

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