Get Answers to all your Questions

header-bg qa

Which of the following accurately explains the process of impulse transmission at an electrical synapse?

 

 

Option: 1

Neurotransmitters are released into the synaptic cleft to facilitate the impulse transmission.


Option: 2

Gap junctions enable direct ion flow between adjacent neurons to facilitate the impulse transmission.


Option: 3

Synaptic vesicles merge with the presynaptic membrane to release neurotransmitters for impulse transmission.

 


Option: 4

Enzymes degrade neurotransmitters following impulse transmission.


Answers (1)

best_answer

At an electrical synapse, the transmission of impulses occurs through the direct flow of ions between adjacent neurons. Gap junctions connect the cytoplasm of the two neurons, allowing for the passage of ions. This direct electrical coupling allows for rapid and synchronized transmission of impulses between the neurons without the need for chemical neurotransmitters. Hence, option 2 is the correct answer

The explanation for the incorrect options :

Option 1 is incorrect because the release of neurotransmitters into the synaptic cleft is characteristic of chemical synapses, not electrical synapses.

Option 3 is incorrect because the fusion of synaptic vesicles with the presynaptic membrane to release neurotransmitters is a characteristic of chemical synapses.

Option 4 is incorrect because the breakdown of neurotransmitters by enzymes is a characteristic of chemical synapses.

Posted by

Devendra Khairwa

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks