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An increase in the concentration of OH- ions.
Most likely the solution is water and salt. The salt in the water causes the celery to pull water out of itself to try and even out the salt to water concentration. This causes the celery to wilt.
Red blood cells that are put in a dilute salt solution swell because of osmosis. This process causes red blood cells to swell in hypotonic solutions because the liquid tries to dilute the cells' solution since it tries to equalize the solution's tonicities.
When placed in an isotonic solution (i.e. a solution where the concentration of water molecules is roughly equal to the that within cells), there is equal diffusion of water into and out of the cells. Therefore, the cells find this environment suitable. In a hypotonic solution (i.e. a solution where the concentration of water molecules is much more than that within cells) water diffuses into cells as a result of which the cells swell. Excessive swelling causes the cells to burst, a phenomenon called cell lysis In a hypertonic solution (i.e. a solution where the concentration of water molecules is lesser than that within cells) water moved out from within cells to the surrounding medium. As a result of this, cells shrink.
As water molecules are smaller than either Sodium or Chlorine molecules, osmosis is favoured in their leaving the cell into the salt solution. Therefore a living cell shrinks in salt solution.
An increase in the concentration of OH- ions.
A hypertonic solution. That is, a solution with high solute concentration.
If placed in a hypertonic solution, cells will shrink because the solute concentration outside the cell will be higher than inside the cell. This causes the movement of water out of the cell (in order to equalise the concentration).
the answer to this question is : hypotonic solution
Adding a base will make the pH go up (increasing of OH- ions concentration).
AN increase n pressure, an increase in gas concentration in the solution
hypertonic solution
Most likely the solution is water and salt. The salt in the water causes the celery to pull water out of itself to try and even out the salt to water concentration. This causes the celery to wilt.
Red blood cells that are put in a dilute salt solution swell because of osmosis. This process causes red blood cells to swell in hypotonic solutions because the liquid tries to dilute the cells' solution since it tries to equalize the solution's tonicities.
When placed in an isotonic solution (i.e. a solution where the concentration of water molecules is roughly equal to the that within cells), there is equal diffusion of water into and out of the cells. Therefore, the cells find this environment suitable. In a hypotonic solution (i.e. a solution where the concentration of water molecules is much more than that within cells) water diffuses into cells as a result of which the cells swell. Excessive swelling causes the cells to burst, a phenomenon called cell lysis In a hypertonic solution (i.e. a solution where the concentration of water molecules is lesser than that within cells) water moved out from within cells to the surrounding medium. As a result of this, cells shrink.
Any solution with more H2O than inside the cell will cause the cell to swell. Animal cells will burst under a lot of pressure, but plant cells will not, due to the presence of a cell well surrounding the cell. In other words, a hypotonic solution will cause a cell to swell, and a hypertonic solution will cause a cell to shrink. Hypo -> hyper
Adding a base will make the pH go up (increasing of OH- ions concentration).