NEET Biology question
A list of events occurring in the transmission of a nerve impulse across the synapse is given below in a random order. (i) Opening of specific ion channels allows the entry of ions, a new action potential is generated in the post-synaptic neuron (ii) Neurotransmitter binds to the receptor on post synaptic membrane (iii) Synaptic vesicle fuses with pre-synaptic membrane, neurotransmitter release into synaptic cleft (iv) Depolarisation of pre-synaptic membrane (v) Arrival of action potential at axon terminal Which of the following options represents these events in a correct order?
Solution
An action potential arrives at the axon terminal (v), depolarising the pre-synaptic membrane (iv); this triggers synaptic vesicle fusion and neurotransmitter release into the cleft
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