Membrane potential

From Health Encyclopedia

Contents 1 Used for 2 Broader Terms 3 Narrower Terms 4 Related Terms 5 Scope Note 6 Facts (generated by robot; please edit if you find it inaccurate)

Used for

afterpotential, double layer electric potential, zeta potential

Broader Terms

electrophysiology

Narrower Terms

action potential, long term potentiation, resting potential, slow potential

Related Terms

electrical potential

Scope Note

electrical potential difference across a biological, i.e., cell or organelle, or artificial membrane.

Facts (generated by robot; please edit if you find it inaccurate)

• To understand how a membrane potential is generated, first consider a cell in which K+ is the only ion across the membrane other than the large negatively charged proteins inside of the cell.
• Reduction in mitochondrial membrane potential is an early event in Fas-independent CTL-mediated apoptosis.
• When the nerve fiber is at rest, the membrane potential is about -70 mV.
• Mitochondrial Membrane Potential Is Dependent on the Oligomeric State of F1F0-ATP Synthase Supracomplexes* Carsten Bornhvd, Frank Vogel, Walter Neupert, and Andreas S.
• Direct measurement of the transmembrane potential was not yet possible, but an effort was made to calculate this voltage using the Nernst equation, shown at left.
• Resting Membrane Potential When a neuron is not sending a signal, it is "at rest.
• This transient switch in membrane potential is the action potential.
• membrane potential Medical membrane potential n.
• The Membrane Potential in Animal Cells Depends Largely on Resting K+ ChannelsIn the experimental system outlined in Figure 15-8a, the distribution of K+, Na+, and Cl ions is similar to that between an animal cell and its aqueous environment.

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