A theory for the membrane potential of living cells
نویسندگان
چکیده
منابع مشابه
A theory for the membrane potential of cells
We give an explicit formula for the membrane potential of cells in terms of the intracellular and extracellular ionic concentrations, and derive equations for the ionic currents that flow through channels, exchangers and electrogenic pumps based on simple energy considerations and conservation laws. We demonstrate that the work done by the pump is equal to the potential energy of the cell plus ...
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All living cells contain the electrogenic enzyme Na/K ATPase, whose function is to pump ions against the electrochemical gradient, in order to provide potential energy which is later used for cellular processes such as action potentials, muscle contraction and facilitated transport. Using a technique developed in our lab, exploiting the molecule’s voltage dependence, it is possible to increase ...
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ژورنال
عنوان ژورنال: European Biophysics Journal
سال: 2000
ISSN: 0175-7571,1432-1017
DOI: 10.1007/s002490050254