Why neuron a is a healthy neuron, Biology

Assignment Help:

Why Neuron A is a healthy neuron

Neuron A is a healthy neuron with all the usual ion channels.  When at rest with a membrane voltage of R millivolts, neuron A produces no action potentials.  The voltage threshold for an action potential in neuron A is T millivolts.  T is greater than R; T is less than zero.  In addition, neuron A's membrane includes the membrane-spanning molecule Z with an ion channel that opens when neurotransmitter Y binds to the Y receptor site on the extracellular surface of Z.  The Nernst equilibrium potential for Z's ion channel is E millivolts.  Neuron B synapses on neuron A; neuron B's neurotransmitter is neurotransmitter Y.  Which of the following statements are true when neuron A is initially at rest and neuron B releases neurotransmitter Y?

  A.  If the value of E is equal to R, and if chloride is the only ion that passes through open Z channels, then Y's binding to its receptor site on Z in neuron A produces no change in the amount of intracellular chloride ions in neuron A.

  B.  If the value of E is equal to R, and if chloride is the only ion that passes through open Z channels, then Y's binding to its receptor site on Z in neuron A produces no change in the chloride conductance of the plasma membrane of neuron A.

  C.  If the value of E is zero and if both sodium ions and potassium ions pass through open Z channels, then Y's binding to its receptor site on Z in neuron A produces no change in the amount of intracellular sodium ions in neuron A.

 


Related Discussions:- Why neuron a is a healthy neuron

Explain texturization - function of protein, Texturization       Protei...

Texturization       Proteins  constitute the basis of structures and texture  in several foods, whether these come from living tissue  (myofibrills in  meat or fish) or from fa

Describe the origin of muscle cramps and pains, Q. How can the knowledge ab...

Q. How can the knowledge about fermentation describe the origin of muscle cramps and pains after intense physical exertion? A typical fermentation process due to oxygen scarcit

Define the wealth care delivery, Define the Wealth Care Delivery ? The ...

Define the Wealth Care Delivery ? The challenge that exists today in many countries is to reach the whole population with adequate health case services and to ensure their util

Illustrate about the primary minerals, Illustrate about the primary mineral...

Illustrate about the primary minerals The minerals originally formed when once -heated magma (molten rock) cooled and formed solid igneous rocks (explained below) are called as

Define the process of digestion of proteins, Define the Process of Digestio...

Define the Process of Digestion of Proteins? The daily protein intake (of about 50-100 g) and the protein of enzymes, sloughed (bled or drop off) epithelial cells and mucins, w

Emergency room management, Emergency Room Management Patient may needs...

Emergency Room Management Patient may needs incubation and ventilatory support till such time that patient is able to breathe normally. In some cases: patient is admini

Sporogenous tissue, complete definition of Sporogenous tissue

complete definition of Sporogenous tissue

What is the etiological agent of visceral leishmaniasis, Q. What is the eti...

Q. What is the etiological agent of visceral leishmaniasis? How the disease transmitted and what is are its typical manifestations? The Visceral leishmaniasis is caused by the

Pathophysiology of endocrine system, What is the relation between posterior...

What is the relation between posterior pituitary gland and diabetes insipidus?

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