Osmosis and diffusion are related processes that display similarities: Both osmosis and diffusion equalize the concentration of two solutions. Both diffusion and osmosis are passive transport processes, which means they do not require any input of extra energy to occur. In both diffusion and osmosis, particles move from an area of higher concentration to one of lower concentration.
Osmosis: is the diffusion of water across a differentially permeable membrane. There are three possible conditions in regards to a cell's water concentration relative to its environment: 1. Isotonic - the solute concentration is the same on either side of the cell membrane.
Cultural diffusion occurs via mechanisms including human migration, intercultural marriages or cultural exchange via letters, books or electronic media. It is a phenomenon in which specific cultural concepts, ideas or technologies spread from one culture to another.