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Diffusion and Osmosis DIFFUSION • The process in which molecules move from areas of HIGH concentration to areas of LOW concentration OSMOSIS • The diffusion of water molecules through a membrane When do the molecules stop moving? EQUILIBRIUM = molecules are evenly distributed Let’s Practice… Let’s Practice… • The concentration of oxygen particles inside a cell is 45 percent and outside the cell is 30 percent. What will most likely happen? Let’s Practice… • The concentration of water molecules inside a cell is 80 percent and outside the cell is 25 percent. What will most likely happen? Let’s Practice… • The concentration of hydrogen particles inside a cell is 33 percent and outside the cell is 62 percent. What will most likely happen?
