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

Guess the number of different haploid cells, A diploid cell contains four p...

A diploid cell contains four pairs of homologous chromosomes designated C1 and C2, M1 and M2, S1 and S2, and W1 and W2. Predict the number of different haploid cells that could be

Normal pigmentation, The female I-1 and her mate, male I-2, had four childr...

The female I-1 and her mate, male I-2, had four children, one of whom has albinism. What is the probability that they could have had a total of four children with any other outcome

1, #phyletic lineage ..

#phyletic lineage ..

Rectum examination of new born, Rectum check for anal patency and p...

Rectum check for anal patency and passage of meconium and observe whether meconium is passed or not. Confirm its patency then pass a catheter or gloved finger  check if

Determine the concentration of your original dna sample, For many years, st...

For many years, students who have occupied my Molecular Biology course have now applied for lab tech jobs exact after graduation. But I have NEVER had a student fail to obtain a jo

Explain vegetable dehydration, Explain Vegetable dehydration It reduces...

Explain Vegetable dehydration It reduces the natural water content below the level critical for the growth of microorganisms (12-15%), without being detrimental to important nu

What are the parasympathetic neurons, What are the parasympathetic neurons ...

What are the parasympathetic neurons Patient A has a disease that has destroyed half of the alpha-adrenergic receptors on each of the smooth muscles that control the diameter o

Why is sub-culturing essential in plant tissue culture, Why is sub-culturin...

Why is sub-culturing essential in plant tissue culture? Explain the process of heterosis. How is it dissimilar from inbreeding depression? Where and how is urea produced in

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