Summary: Selective Permeability
Jackie Bonds
January 23, 2012
Neus 586
Monday, January 30, 2012
Selective Permeability ­ What
· Selective permeability means that the
cell membrane has some control over
what can cross it, so that only certain
molecules either enter or leave the cell.
Monday, January 30, 2012
Regulation of Membrane
Permeability
· Ionic composition inside neurons is
tightly regulated and must be able to
be rapidly modified in response to
various stimuli
· Specialized transmembrane channels
allow ions to rapidly enter the cell
while still maintaining high selelctivity

Source: Alford, Simon - Department of Biological Sciences, University of Illinois at Chicago

Collections: Biology and Medicine