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

What are biotic factors, What are biotic factors? Biotic factors are li...

What are biotic factors? Biotic factors are living beings (plants, microorganisms and animals) that are part of a given environment.

Excretion in cockroach, EXCRETIO N IN COCKROACH- Animal is uricotelic....

EXCRETIO N IN COCKROACH- Animal is uricotelic. Excretory organs are malphighian tubules. 60-150 in 6-8 groups. In each group 10-15. Yellow coloured, blind tube, open in gut

What are exocrine respective hormones and enzymes, What are the pancreatic ...

What are the pancreatic tissues involved respectively in the exocrine and endocrine secretions? What are their respective hormones and enzymes? The exocrine secretion of the pa

Syringe, Can you use a regular syringe instead of a gas syringe in a lab

Can you use a regular syringe instead of a gas syringe in a lab

What are the flat bones and the long bones, Q. What are the flat bones and ...

Q. What are the flat bones and the long bones? The main bones of the body may be classified as long or flat bones there are bones not classified into these categories. Instance

How does the Cornea work, How does the Cornea work, I heard that it is like...

How does the Cornea work, I heard that it is like a motor, however i''m not too sure... because a motor is in vehicle and has piston, and the Cornea is in our eyes and... Well does

Define preoperative nutritional care during surgery, Define Preoperative Nu...

Define Preoperative Nutritional Care during Surgery? It can be provided only to prospective candidates of elective surgery and is not feasible for emergency cases. Preoperative

Biological conservation, what are the significance of zoological parks in c...

what are the significance of zoological parks in conversation

What is trophic levels and food webs, What is Trophic Levels and Food Webs?...

What is Trophic Levels and Food Webs? Trophic Levels and Food Webs : Energy flows and nutrients are cycled through an ecosystem via organisms that feed on one another. When c

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