--%>
Assignment Help - homework help

How potassium-sodium maintain resting potential of neuron

How potassium and sodium and ions maintain the resting potential of neuron?

E

Expert

Verified

The plasma membrane of neuron whenever at rest maintains an electric potential difference between its internal and external surfaces. This voltage is termed as resting potential. The resting potential is around –70 mV points out that the interior is more negative than the external (that is, negative polarization). This condition is maintained by transport of potassium and sodium ions across the plasma membrane.

The membrane is permeable to potassium ions however not to sodium ions. At rest, the positive potassium ions depart the cell in favor of concentration gradient as in the cell; the potassium concentration is greater than in the extracellular space. The positive sodium ions can’t though go into the cell. As positive potassium ions depart the cell with not adequate compensation of positive ions entering the cell, the intracellular space becomes much negative and the cell stays polarized.

   Related Questions in Biology

  • Q : What is phellogen What is meant by the

    What is meant by the phellogen? Explain its function?

    		•
  • Q : The Extended Ansoff Matrix and

    Returning to the wisdom of Michael Porter, one of his key insights was recognizing that all of companies activities are ultimately directed to its products and markets. He recognized that you could effectively identify the strategy of any company by looking at how it

    		•
  • Q : Vertebrate and invertebrates nervous

    Specify some of the main differences of vertebrate nervous systems comparing to the invertebrates?

    		•
  • Q : Explain Product Positioning Product

    Product Positioning: In the present day competitive market, concept of mass marketing has lot its relevance. Businesses achieve their optimum results when they position their products in the market place. This means that the target audience are to be

    		•
  • Q : Of what units are nucleic acids

    Of what units are nucleic acids comprised? Write down the chemical entities which compose that unit?

    		•
  • Q : Cells during first stage of embryonic

    Specify the cells which are generated within the first stage of embryonic development called?

    		•
  • Q : Auxin concentration in structures of

    What takes place when auxin concentration in some structures of plant is over the action range of hormone?

    		•
  • Q : Positive Aspects-Group Decision

    1)     Pooling of knowledge and information: since many individuals involved in-group decision-making, more data and information can be brought to bear on the decision. The group provides specialized inputs in defining variables and suggests alternatives that

    		•
  • Q : Muscle tissue-Peristaltic movements of

    Which of muscle tissue performs the peristaltic movements of intestines?

    		•
  • Q : Define Corporate Image Corporate Image:

    Corporate Image: A corporate image is the perception which the general public holds regarding a specific business. Most of the companies invest a huge deal of time and other resources in an attempt to persuade the opinion which consumers hold regardin

    		•