Osmosis

I am trying to learn through osmosis. diffusion of water Water molecules will move across a membrane towards the space that has more solute molecules. Common solute molecules include salt, sugar, starch and glucose.       I am trying to learn through osmosis.

Water moves in three directions Isotonic Hypertonic Hypotonic

Cell neither gains nor loses water and remains unchanged.                                       Isotonic solution "ISO" means the same Cell neither gains nor loses water and remains unchanged. Concentration of solute (salt or glucose) is equal on both sides. animal cell - normal               plant cell -  flaccid (limp)

The word "HYPER" means more                                       Hypertonic solution The word "HYPER" means more More solute molecules outside the cell then inside the cell Causes water to be moved in that direction Cell loses water and shrinks. This is a problem for many marine organisms. animal cell - crenated            plant cell -   plasmolyzed

The word "HYPO" means less                                       Hypotonic solution The word "HYPO" means less There are less solute molecules outside the cell and water will move into the cell. The cell gains water and swells. This is a problem for many freshwater organisms. animal cell - lysed plant cell - turgid