[Modeling of ion transport. Analysis of possible mechanisms of intracellular osmoregulation].
It seems likely that the operation of the vacuolar mechanism of active transport of water (VMATW) is based on the following. An exceeding osmotic pressure is created within an originally small vacuole (e. g. due to rapid enzymatis hydrolysis of macromolecules inside the vacuole) and consequently water enters the vacuole, as well as molecules and ions according to the gradients of their chemical potentials. After a while the contents of the swelling vacuole is thrown out to the external medium. An analysis of the efficiency of VMATW system in the stationary case shows that the efficiency of VMATW can be rather high to create the ionic heterogeneity.
D002468:Cell Physiological Phenomena; D008954:Models, Biological; D014617:Vacuoles / Q000502:physiology; D014882:Water-Electrolyte Balance
K modelirovaniiu ionnogo transporta. Analiz vozmozhnosteĭ mekhanizma vnutrikletochnoĭ osmoreguliatsii