In a hypertonic environment, walled cells will lose water by osmosis and will plasmolyze , which is usually lethal. Phenomenon where a walled cell shrivels and the plasma membrane pulls away from the cell wall as the cell loses water to a hypertonic environment. In a hypotonic environment, water moves by osmosis into the plant cell, causing it to swell until internal pressure against the cell wall equals the osmotic pressure of the cytoplasm. Firmness or tension such as found in walled cells that are in a hypoosmotic environment where water enters the cell by osmosis. Ideal state for most plant cells.
Turgid cells provide mechanical support for plants.
Requires cells to be hyperosmotic to their environment. In an isotonic environment, there is no net movement of water into or out of the cell. Plant cells become flaccid or limp. Loss of structural support from turgor pressure causes plants to wilt. Is passive transport because solute is transported down its concentration gradient.