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Synaptic vesicle is found in...

Synaptic vesicle is found in

A

Pre-synaptic neuron

B

Post synaptic neuron

C

Synaptic left

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
A
In a synapse, the transmitting cell is called the presynaptic cell and the gap in between is called a synaptic cleft. Synaptic vesicles are found in presynaptic neruron. They contain neurotransmitters which on stimulation are released into synaptic cleft and then these chemicals combine with the receptors on the postsynaptic neuron causing depolarization.
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Synaptic vesicles occure in

[A] : Synaptic vesicles fuse with membrane and release neurotransmitter molecules. [R]: Neurotransmitter attaches to receptor site and open sodium channels to allow so- dium to flow into post synaptic cell causing depolarisation.

A list of events occurring in the transmission of 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 ?

A synaptic cleft is

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Release of cheminal messenge from synaptic vesicles is triggered by

Neurosecretion of neurotransmitter from the synaptic vesicles is triggered by Ca^(++)//Mg^(++) ions.

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