On exploring the basis for slow and fast oscillations in cellular systems.
We show that interesting oscillatory patterns may arise from an immobilized enzyme system, when the enzyme has the properties that it is inhibited by a substrate, produces H+ and has a pH-activity curve of bell-shaped form. In agreement with experimental observations in cellular excitations, the system generates fast oscillations that are superimposed on a slow cycle, at certain salt and enzyme concentrations.
D000818:Animals; D002468:Cell Physiological Phenomena; D004557:Electric Organ / Q000502:physiology; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D008433:Mathematics; D008954:Models, Biological; D014101:Torpedo