 |
 |
Welcome to Bioc 415
Scheduled labs
On-line resources
Introductory lab manual (Bioc 211)
Bioc 311 resources
Bioc 415 manual (pdf)
Bioc 415 appendixes (pdf)
Membrane Hyperpolarization
Start with a cell membrane in the normal state, with membrane
potential of -65 mV. Red indicates surplus of positive
charge, blue indicates surplus of negative charge (deficit
of positive ions).
Membrane Hyperpolarization
Change the extracellular medium to a solution with 0.3 times the normal concentration of potassium chloride. Potassium ions shift out, carrying positive charge to the exterior.
Now in the new steady state, there is more displaced charge across the membrane.
Created by David R. Caprette (caprette@rice.edu), Rice University 9 Dec 97
Updated 18 Jul 05
Copyright and Intended Use