- Created by: libbystrachan
- Created on: 01-12-16 20:20
- diffusion, osmosis, and active transport
- diffusion is when particals randomly move from an area of high concentration to an area of low concentation
- osmosis is the movement of water molecules from an area of high water to low water concentration across a partially permeable membrane.
- active transport is when the substances needed by a cell have to be moved against a concentration gradient, across a permeable membrane.