Published by:
CGP EDU Academic Team
Published on: August 21, 2026
Which sequence correctly represents the process of nerve impulse transmission at a chemical synapse?
A
Arrival of impulse 
Opening of calcium channels 
Release of neurotransmitters into synaptic cleft 
Binding to receptors on post-synaptic neuron
Opening of calcium channels Release of neurotransmitters into synaptic cleft Binding to receptors on post-synaptic neuron
B
Arrival of impulse 
Release of neurotransmitters into synaptic cleft 
Opening of calcium channels 
Binding to receptors on post-synaptic neuron
Release of neurotransmitters into synaptic cleft Opening of calcium channels Binding to receptors on post-synaptic neuron
C
Binding to receptors on post-synaptic neuron 
Arrival of impulse 
Release of neurotransmitters into synaptic cleft 
Opening of calcium channels
Arrival of impulse Release of neurotransmitters into synaptic cleft Opening of calcium channels
D
Opening of calcium channels 
Arrival of impulse 
Binding to receptors on post-synaptic neuron 
Release of neurotransmitters into synaptic cleft
Arrival of impulse Binding to receptors on post-synaptic neuron Release of neurotransmitters into synaptic cleft
Text Solution
Verified by ExpertsThe correct answer is:
In a chemical synapse, the arrival of an impulse leads to the opening of calcium channels. This then triggers the release of neurotransmitters into the synaptic cleft, which subsequently bind to specific receptors on the post-synaptic neuron to propagate the impulse.
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