--%>
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 : Describe Product Line Product Line : It

    Product Line: It termed as a number of products which are related and developed through similar manufacturer. These are not to be confused with product bundling that combines different items in one kind of product. Items inside a product line normally

    		•
  • Q : Number of germ layers which originate

    What is number of germ layers which originate in the body of platyhelminthes? In relation to this characteristic how are such animals categorized?

    		•
  • Q : Role of messenger RNA and ribosomes for

    Write down the role of messenger RNA and ribosomes for protein synthesis.

    		•
  • Q : Groups of cell categorization Write

    Write down the two big groups into which the cells are categorized?

    		•
  • Q : What do you mean by the term coelom

    What do you mean by the term coelom? To which structures do coeloms give birth? Are each and every animal coelomate?

    		•
  • Q : Define PRINCE PRINCE : A) Projects in a

    PRINCE:A) Projects in a Controlled Environment. B) Standard project methodology for UK government organizations, its partners, and now many other organizations. C) Defines

    		•
  • Q : Internal|External Communication Group

    1)     Letters: letters are the most widely used form of written communication which can be between friends on matters of personal interests, or between individuals, firms or companies on matters of trade and commerce. In the more traditional forms of

    		•
  • Q : Circulatory system participate in

    How does circulatory system participate in functioning of endocrine system?

    		•
  • Q : Factors contributing performance gap

    Describe possible knowledge-based (probably requiring training or other instruction) that may be indicated.

    		•
  • Q : Process of Organizing Process of

    Process of Organizing The process of organization may be described as the managerial function of organizing. It consists in making a rational division of work into groups of activities and tying to

    		•