Selective permeability

Definition

noun

A feature and a function of the plasma membrane that is essential to maintain homeostasis by regulating the passage of some substances while preventing others from entering the cell.


Supplement

The plasma membrane is capable of being selectively permeable because of its structure, which is composed of a bilayer of hydrophobic phospholipids, and proteins that act as transporters or channels for certain molecules (e.g. ions).


See also: fluid mosaic model, plasma membrane.


Please contribute to this project, if you have more information about this term feel free to edit this page



This page was last modified on 3 August 2008, at 06:54. This page has been accessed 280,802 times. 
What links here | Related changes | Permanent link