The mechanism by which neurotransmitters excite and inhibit the postsynaptic neuron. Introduction: Neurotransmitters are small chemical groups that are released from the axon terminals of the neurons. They bind to the specific receptors that are present on the next neuron, called post-synaptic neuron, and initiate a series of reactions that result in the generation of the action potential. The neurotransmitter receptors are present in the form of ligand-gated ion channels, where ligands are the neurotransmitters themselves. They bind to the receptors and initiate the opening of the voltage-gated ion channels. The neurotransmitters might excite the neuron or inhibit it, depending upon the type of voltage-gated ion channels that it has triggered to open.

Question

Want to see the full answer?

Answer 1

Question

Chapter 11.5, Problem 3QC

Summary Introduction

To review:

The mechanism by which neurotransmitters excite and inhibit the postsynaptic neuron.

Introduction:

Neurotransmitters are small chemical groups that are released from the axon terminals of the neurons. They bind to the specific receptors that are present on the next neuron, called post-synaptic neuron, and initiate a series of reactions that result in the generation of the action potential. The neurotransmitter receptors are present in the form of ligand-gated ion channels, where ligands are the neurotransmitters themselves. They bind to the receptors and initiate the opening of the voltage-gated ion channels. The neurotransmitters might excite the neuron or inhibit it, depending upon the type of voltage-gated ion channels that it has triggered to open.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

. Consider a base substitution mutation that occurred in a DNA sequence that resulted in a change in the encoded protein from the amino acid glutamic acid to aspartic acid. Normally the glutamic acid amino acid is located on the outside of the soluble protein but not near an active site. O-H¨ A. What type of mutation occurred? O-H B. What 2 types of chemical bonds are found in the R-groups of each amino acid? The R groups are shaded. CH2 CH2 CH2 H2N-C-COOH H2N-C-COOH 1 H Glutamic acid H Aspartic acid C. What 2 types of bonds could each R-group of each of these amino acids form with other molecules? D. Consider the chemical properties of the two amino acids and the location of the amino acid in the protein. Explain what effect this mutation will have on this protein's function and why.

engineered constructs that consist of hollow fibers are acting as synthetic capillaries, around which cells have been loaded. The cellular space around a single fiber can be modeled as if it were a Krogh tissue cylinder. Each fiber has an outside “capillary” radius of 100 µm and the “tissue” radius can be taken as 200 µm. The following values apply to the device:R0 = 20 µM/secaO2 = 1.35 µM/mmHgDO2,T = 1.67 x 10-5 cm2/secPO2,m = 4 x 10-3 cm/secInstead of blood inside the fibers, the oxygen transport and tissue consumption are being investigated by usingan aqueous solution saturated with pure oxygen. As a result, there is no mass transfer resistance in the synthetic“capillary”, only that due to the membrane itself. Rather than accounting for pO2 variations along the length ofthe fiber, use an average value in the “capillary” of 130 mmHg.Is the tissue fully oxygenated?

Molecular Biology Please help with question. thank you You are studying the expression of the lac operon. You have isolated mutants as described below. In the presence of glucose, explain/describe what would happen, for each mutant, to the expression of the lac operon when you add lactose AND what would happen when the bacteria has used up all of the lactose (if the mutant is able to use lactose).5. Mutations in the lac operator that strengthen the binding of the lac repressor 200 fold 6. Mutations in the promoter that prevent binding of RNA polymerase 7. Mutations in CRP/CAP protein that prevent binding of cAMP8. Mutations in sigma factor that prevent binding of sigma to core RNA polymerase