What is the resting membrane voltage of the neuron, Biology

Assignment Help:

What is the resting membrane voltage of the neuron

A complete motor neuron is removed from a frog and placed in normal physiological saline at 1 AM.  The neuron is healthy.  At 2 AM, the physiological saline bathing the neuron is removed and replaced with a modified physiological saline.  The composition of the modified physiological saline is as follows: its potassium concentration is the same as normal physiological saline; its sodium concentration is the same as the intracellular sodium concentration of the motor neuron; its total concentration of solutes (osmolarity) is the same as normal physiological saline.  The modified physiological saline also contains molecules that block the flux of ions via the sodium-potassium primary active transport pump.  At 2:05 AM, the resting membrane voltage of the neuron is -70 millivolts.  At 2:06 AM,

A. the value of the Nernst equilibrium potential for sodium ions for the neuron is greater than +20 millivolts.

B. an increase in sodium conductance will lead to an increase in the amount of intracellular sodium.

C. an increase in sodium conductance will lead to no change in the membrane voltage.

 


Related Discussions:- What is the resting membrane voltage of the neuron

Explain the spinal cord and its function, Spinal cord The elongated par...

Spinal cord The elongated part of CNS that runs downward in the spinal canal as continuationof medulla oblongata is called spinal cord. The functions of the Spinal Cord are

Alimentory canal, how to do assignment on alimentory canal

how to do assignment on alimentory canal

In which lysosomic enzymes play a fundamental role, Q. What are the various...

Q. What are the various biological examples in which lysosomic enzymes play a fundamental role? The remodelation of the osseous tissue, the function of the elimination of the t

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

Explain about the foods effect on drug utilization, Explain about the Foods...

Explain about the Foods Effect on Drug Utilization? The following illustrations highlight the effect of food on drug utilization. Liver and green leafy vegetables can decrea

What is ribose, What is ribose Browning in canned fish is commonly asso...

What is ribose Browning in canned fish is commonly associated with ribose. Undesirable colour changes in shellfish during canning often involve metal  ions, for example, the bl

Explain changing body composition with ageing, Explain Changing Body Compos...

Explain Changing Body Composition with Ageing? With ageing, a progressive decline in the water content and the lean body mass is accompanied by an increasing proportion of body

Transport and facilitated diffusion have in common, Q. What do active trans...

Q. What do active transport and facilitated diffusion have in common? What are the dissimilarity between them? Facilitated diffusion can be perplexed with active transport beca

Cyclostomes - regeneration in vertebrates, Cyclostomes - Regeneration in Ve...

Cyclostomes - Regeneration in Vertebrates The larvae of the lampreys between the jawless primitive fishes are able to regenerate their amputated tail. Blastema is made at the

What is phenotypic ratio, The F2 phenotypic ratio from a dihybrid cross wit...

The F2 phenotypic ratio from a dihybrid cross with epistasis was 9:3:4. If instead of a dihybrid cross, a double heterozygote was test crossed (crossed to a homozygous recessive 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