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

Autumn (fall) overturn, Autumn (fall) overturn In autumn or early wint...

Autumn (fall) overturn In autumn or early winter the air temperature falls, resulting in the cooling of the surface waters. When the surface water cools to 4°C it becomes dens

What are the elements that constitute the internal ear, Q. What are the ele...

Q. What are the elements that constitute the internal ear? What are the functions of those structures? In the internal ear there are the semicircular canals and the cochlea. Th

Nucleus of a spermatogonia, Plot the amount of DNA in the nucleus of a sper...

Plot the amount of DNA in the nucleus of a spermatogonia from the G1 stage prior to the first meiotic division through the completion of meiosis. Label each of the major stages of

What are the material used in biotolerant, Biotolerant Metals :- Co- Cr...

Biotolerant Metals :- Co- Cr Alloys, Stainless Steel, Gold,  niobium, tantalum Polymers:-  Polyethylene, polytetrafluorethylene, polyamide, polymethylmethacrylate, polyureth

Which is better-scrubbing the instruments or ultrasonic bath, Q. Which is b...

Q. Which is better-scrubbing the instruments or ultrasonic bath to clean the instruments? Ultrasonic bath to clean the instruments is better than hand scrubbing the instruments

Illustrate wild life sanctuaries, Q. Illustrate Wild Life Sanctuaries? ...

Q. Illustrate Wild Life Sanctuaries? You must have seen how some of the parks are fenced. The intention is to keep the animals from wandering out and not to destroy neighbourin

Egg type, why their is different amount of yolk is present in eggs.

why their is different amount of yolk is present in eggs.

Ethylene - plant hormones, Ethylene - Plant Hormones Amongst hormones ...

Ethylene - Plant Hormones Amongst hormones in both plant and animal kingdoms, ethylene, a gaseous hydrocarbon, is unique. Despite its chemical simplicity, it is a potent growt

Maturation promoting factor, • Cyclins accumulate during the G1, S, and G2 ...

• Cyclins accumulate during the G1, S, and G2 phases of the cell cycle. • By the G2 checkpoint (the red bar in the figure), enough Cyclin is available to form MPF complexes (aggre

Define some advantages of breast milk for infants, Define some Advantages o...

Define some Advantages of breast milk for Infants? 1) Breast milk is a simple and natural method of feeding. It is hygienic, inexpensive and available at all times at the righ

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