Cooperative effects in models of steady-state transport across membranes. I.
Three simple models are discussed which show cooperative effects in the steady-state transport of neutral molecules across a membrane. The Bragg-Williams approximation is employed, and its limitations discussed. In this approximation to cooperative problems, the diagram method for the calculation of steady-state probabilities and fluxes can still be used. This paper is closely related to one by Blumenthal, Changeux, and Lefever, and provides the foundation for sequels on an oscillatory steady-state phase-transition model (part II) and on simple models possibly related to steady-state potassium ion transport across a nerve membrane (part III).
D001692:Biological Transport; D008566:Membranes / Q000378:metabolism*; D008954:Models, Biological; D009474:Neurons / Q000378:metabolism; D011188:Potassium / Q000378:metabolism
D011188:Potassium