Question

Synaptic vesicles are found in
a) Presynaptic neuron
b) Postsynaptic neuron
c)Synaptic cleft
d)None of the above

Answer 1

Hint Neurons are the working unit of the brain. They are used to transfer signals and information to other glands and organs present in the body. Neurons consist of axon, dendrite and cell body.

Complete answer: Synaptic vesicles help in the neurotransmission. It plays a major role in transmitting, storing and releasing. Synaptic vesicles are stored in the presynaptic terminal by the means of a complex scaffold of proteins that help in the organization of the vesicle which is filled with neurotransmitters. The synapse consists of three parts which are the presynaptic membrane, the postsynaptic membrane and the space present between these two membranes is the synaptic cleft. The transmission travels from the axon of the presynaptic membrane to the dendrite of the postsynaptic membrane.

Additional information:
-Postsynaptic neuron is the neuron end where it receives the neurotransmitter signals after it has crossed the synaptic cleft. Postsynaptic part of the neuron is generally located on the dendrite part of the neuron. They work through temporal and spatial summation.
-Synaptic cleft is the gap between the presynaptic and postsynaptic membrane. It is a junction between the two neurons. The nerve impulse passes from one neuron to the second neuron from this junction.
-Chemical synapses use chemical transmitters to transmit their signals. They are found all over the body. Neurons use electrical signals to carry the information. These electrical signals are known as an action potential. The electrical signals cannot pass from one neuron to the other so they need the help of the neurotransmitters. Chemical synapse can be differentiated on the basis of their function and structure.
-The structure of the chemical synapse includes presynaptic terminal, synaptic cleft, and postsynaptic terminal.

So, the answer is ‘presynaptic neuron’.

Note: Presynaptic terminal releases the neurotransmitters and is located in the axon end. The postsynaptic terminal receives these neurotransmitters and is located at the dendrite end of the neuron. The synaptic cleft is the gap between the two membranes which holds them together for the transmission exchange.