Asked by Jillian Morales on May 03, 2024
Verified
When a neurotransmitter binds to its receptor and increases the permeability of the postsynaptic membrane to Na+,
A) the membrane will be hyperpolarized.
B) more Cl− will also diffuse into the cell.
C) an excitatory postsynaptic potential (EPSP) will result.
D) the membrane will become impermeable to K+.
E) Na+ diffuses out of the cell.
Excitatory Postsynaptic Potential
A temporary increase in synaptic potential that makes a post-synaptic neuron more likely to generate an action potential.
Hyperpolarized
A state in which a cell's membrane potential is more negative than its normal resting potential.
- Illustrate the procedure of synaptic transmission, with emphasis on the contribution of neurotransmitters and the series of events from the emission of neurotransmitters to the ensuing reaction in the postsynaptic neuron.
- Describe the variability in postsynaptic responses depending on the type of neurotransmitter and the receptors involved.
Verified Answer
LR
lazaro ramosMay 04, 2024
Final Answer :
C
Explanation :
When a neurotransmitter increases the permeability of the postsynaptic membrane to Na+, it causes an influx of Na+ ions into the cell, leading to depolarization of the membrane. This depolarization is known as an excitatory postsynaptic potential (EPSP), making the neuron more likely to fire an action potential.
Learning Objectives
- Illustrate the procedure of synaptic transmission, with emphasis on the contribution of neurotransmitters and the series of events from the emission of neurotransmitters to the ensuing reaction in the postsynaptic neuron.
- Describe the variability in postsynaptic responses depending on the type of neurotransmitter and the receptors involved.