Question

Which of the following statement is incorrect with respect to synapse?

• A. A synapse is formed by membranes of a pre-synaptic neuron and a post-synaptic neuron, which are always separated by a gap called "Synaptic cleft".
• B. Transmission of impulse across electrical synapses is very similar to impulse conduction along a single
  axon.
• C. Electrical synapses are rare in our system.
• D. Chemical synapse use neurotransmitters for conduction of impulse.

Answer 1

Answer: (A)

The gap between the two neurons is known as "Synapse". It is made up of three components: Presynaptic membrane, synaptic cleft where neurotransmitters are released and post-synaptic membrane. The layers of the synapse may or may not be separated by a synaptic cleft. Transmission of impulse across electrical synapses is very similar to impulse conduction along a single axon. The electrical synapses use electricity or electrical impulses. These are quicker but less abundant in the body as compared to chemical synapses. An electrical synapse is a gap between two neurons that has channel proteins. It can travel straight over the synapse. The electrical synapses are faster and smaller after a synapse. Electrical synapses are rare in our system. These are quicker but less abundant in the body as compared to chemical synapses. Chemical synapse use neurotransmitters for conduction of impulse and relay information with the help of chemicals. A chemical synapse is a gap between two neurons in which the data passes chemically. The chemicals are called "Neurotransmitter molecules".