What is frog central nervous system, Biology

Assignment Help:

What is frog central nervous system

Consider Neuron B in the frog central nervous system whose plasma membrane has a newly discovered ligand-gated ionotropic receptor, named the LGD receptor.  The channel in the same molecular complex as the LGD receptor is termed the LGD receptor channel and is a monovalent cation channel that, when open, is permeable to both sodium and potassium.  The Nernst equilibrium potential for sodium in Neuron B is +60 mV, and the Nernst equilibrium potential for potassium in Neuron B is -90 mV. The threshold for an action potential in Neuron B is -55 mV and the resting potential for Neuron B is -70 mV.  LGD is an agonist for the ligand-gated ionotropic receptor.  When LGD binds to its binding site, there is an increase in conductance of both sodium and potassium in the LGD receptor channel.  Neuron A synapses onto Neuron B.  Neuron A's transmitter is LGD.

A. When the LGD receptor channel is open in Neuron B, its potassium conductance equals its sodium conductance.  In response to an action potential in Neuron A, then there will be an excitatory postsynaptic potential in Neuron B.

B. When the LGD receptor channel is open in Neuron B, its potassium conductance equals four times its sodium conductance.  In response to an action potential in Neuron A, then there will be a voltage increase and an action potential in Neuron B.

C. When the LGD receptor channel is open in Neuron B, its potassium conductance equals nine times its sodium conductance.  In response to an action potential in Neuron A, then there will be an inhibitory postsynaptic potential in Neuron B.

 


Related Discussions:- What is frog central nervous system

Determine the types of blood, Determine the types of blood There are th...

Determine the types of blood There are three types of blood cells. They are Red Blood Corpuscles (RBC), White Blood Corpuscles (WBC) or leucocytes and blood platelets or thromb

Name some standard activation energy, The standard free energy change and s...

The standard free energy change and standard activation energy for four biochemical reactions are listed in the table below: A few interpretations are given below. Between thes

State the functional domains in children, Functional Domains in Children ...

Functional Domains in Children There are three functional domains of particular interest in this age range: Attention, Memory, and Executive function. The

Explain the right ventricle from the pulmonary artery, What is the valve th...

What is the valve that separates the right ventricle from the pulmonary artery? Why is that valve significant? The valve that divides the right ventricle and the base of the p

Theory of embryology - theory of epigenesis, THEOR Y OF EPIGENESIS - ...

THEOR Y OF EPIGENESIS - It was propounded by C. F. Wolff and supported by Von Baer. According to it, the egg contains the substances which are required in the formation

Illustrate the important rules of nomenclature, Q. Illustrate the Important...

Q. Illustrate the Important rules of nomenclature? Nomenclature is allied to taxonomy as it deals with the determination of the correct name to be applied to a known taxon. The

Protozoa., what is .groups of protozoa?

what is .groups of protozoa?

Composition-atmosphere, Composition The present day composition of atmo...

Composition The present day composition of atmosphere is the product of a lengthy evolutionary process that began more than four billion years ago. It is composed of a mixture

Zoo201, In an outline form only, attempt the classification of the phylum a...

In an outline form only, attempt the classification of the phylum arthropoda

Can you explain cholera, Q. Can you explain Cholera? Cholera is one of ...

Q. Can you explain Cholera? Cholera is one of the diseases which had caused epidemics all over the world. The organism which causes the disease is Vibrio cholerae. It is an

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd