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'''Tonisite''' ''efektif osmolarite'' veya ''efektif osmolalite'' nin bir ölçüsüdür. [[Osmolalite]] ve [[osmolarite]] partiküler bir solüsyonun membrandan bağımsız özellikleridir. Tonisite is a property of a solution in reference to a particular membrane, and is equal to the sum of the concentrations of the solutes which have the capacity to exert an osmotic force across that membrane.
'''Tonisite''' ''efektif osmolarite'' veya ''efektif osmolalite'' nin bir ölçüsüdür. [[Osmolalite]] ve [[osmolarite]] partiküler bir solüsyonun membrandan bağımsız özellikleridir.


[[Hipertonik]], [[hipotonik]] ve [[izotonik]] çözeltiler hücre içi sıvının tonisitesi ile dışardaki ortamın tonisitesinin farkı veya aynı olmasına göre ortaya çıkan terimlerdir.
[[Hypertonic]], [[hypotonic]] and [[isotonic]] solutions are defined in reference to a cell membrane by comparing the tonicity of the solution with the tonicity within the cell.
* If a cell is placed in a ''hypotonic'' solution (one of lower tonicity than the cell contents), the water concentration is greater outside the cell and so [[osmosis]] produces a net movement of water into the cell. This causes animal cells (without a cell wall) to burst and plant cells (which do have a cell wall) to become ''turgid''.
* If a cell is placed in a ''hypotonic'' solution (one of lower tonicity than the cell contents), the water concentration is greater outside the cell and so [[osmosis]] produces a net movement of water into the cell. This causes animal cells (without a cell wall) to burst and plant cells (which do have a cell wall) to become ''turgid''.
* If the medium is ''isotonic'', the water concentration is the same on either side of the cell membrane, and there is no net movement of water.
* If the medium is ''isotonic'', the water concentration is the same on either side of the cell membrane, and there is no net movement of water.

Sayfanın 07.14, 28 Temmuz 2007 tarihindeki hâli

Tonisite efektif osmolarite veya efektif osmolalite nin bir ölçüsüdür. Osmolalite ve osmolarite partiküler bir solüsyonun membrandan bağımsız özellikleridir.

Hipertonik, hipotonik ve izotonik çözeltiler hücre içi sıvının tonisitesi ile dışardaki ortamın tonisitesinin farkı veya aynı olmasına göre ortaya çıkan terimlerdir.

  • If a cell is placed in a hypotonic solution (one of lower tonicity than the cell contents), the water concentration is greater outside the cell and so osmosis produces a net movement of water into the cell. This causes animal cells (without a cell wall) to burst and plant cells (which do have a cell wall) to become turgid.
  • If the medium is isotonic, the water concentration is the same on either side of the cell membrane, and there is no net movement of water.
  • If the medium is hypertonic, the water concentration inside the cell is greater. This leads to net movement of water out of the cell. Animal cells shrivel up; plant cells become plasmolysed (the cell membrane pulls away from the cell wall in places as the cytoplasm shrinks).

Tonisitenin hayvan ve bitki hücresi üzerindeki etkisi farklıdır.Çünkü bitki hücresinde asla şekil değiştirmeyen bir hücre duvarı vardır.

Tonicity is also applied to the elastic tension of living muscles, arteries, etc. that facilitates response to stimuli. Clinically, this is referred to as tonus (See muscle tone).

Tonicity refers to the total concentration of non-permeating solute particles in a solution. eg. a 300mmol/l solution of urea is isoosmotic to red blood cells because its osmolarity is the same as that of red blood cells, but it is hypotonic to red blood cells because urea is able to cross the cell membrane and so the total concentration of non-permeating particles = 0

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