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

Show the model of behaviour change, Behavior Change Communication (BCC) int...

Behavior Change Communication (BCC) interventions that address diabetes mellitus are designed to promote behaviors that prevent diabetes and complications of diabetes. Behavior cha

How the sodium-potassium pump present in the cell membrane, How does the so...

How does the sodium-potassium pump present in the cell membrane work? What is the importance of this protein for the cell? The sodium-potassium pump is the transport protein th

What is mitosis, What is Mitosis? Mitosis is a process whereby a cell...

What is Mitosis? Mitosis is a process whereby a cell that is preparing to divide separates the duplicated pairs of chromosomes from each other so that each of the new daughte

To test the gas given off when seeds germinate, To test the gas given off w...

To test the gas given off when seeds germinate Place some mustard seeds in a flask with some damp cotton wool, in the apparatus shown in the diagram, and permit them to germina

How does water move inside sponges, How does water move inside sponges? Wha...

How does water move inside sponges? What is the function of the pores in these animals? Sponges are filtering beings. They make water enter their bodies by their lateral pores

Show ions used in electrical impulse transmission in neurons, Q. What are t...

Q. What are the two major ions that participate in the electrical impulse transmission in neurons? The two major ions that participate in the electrical impulse transmission in

How the type of sport influence protein requirements, How the type of Sport...

How the type of Sport influence protein requirements? The type of sport and total calorie intakes influence protein requirements. Eating sufficient foods to meet high energy re

Why phylogenies using maximum likelihood methods, When constructing phyloge...

When constructing phylogenies using maximum likelihood methods, you assume?

The kidney.., where is the inlet and outlet of the diaylsis machine

where is the inlet and outlet of the diaylsis machine

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