water potential vocab

hydration shell - dynamic layers of water molecules that form around a dissolved ion or molecule

dissolution - process of solute particles moving & becoming evenly dispersed in a solvent

osmosis - movement of water through a selectively permeable membrane from area of low solute concentration to area of high solute concentration

water also moves from area of high water potential to area of low water potential

crenated - state of an animal cell shriveling & shrinking due to water loss

plasmolysis - shrinking of cell membrane away from cell wall, as a result of water loss

turgor pressure - pressure against a cell wall by a fluid in the cell

plasmolysis - cell wall shrinks away from the cell membrane due to a loss of water in the plant cell

water potential - a measure of potential energy of water, resulting from the solute potential & pressure potential

solute potential - tendency of water to move from area of low solute concentration to area of high solute concentration

also refers to the attraction of water molecules to solute particles
lots of solute particles reduces the number of free water molecules & limits the movement of water

pressure potential - pressure that water exerts on a cell membrane