Pasteurization is a process name for French scientist Louis Pasteur , who discovered the process in the 1860s that undesired fermentation caused by bacteria could be prevented in wine and beer by heating it to 135°F (57°C) for a few minutes. The process is still used for sterilization of liquids such as milk, orange juice, [...]

Plant cells are surrounded by rigid walls made of cellulose (plant fiber), but water can still move through these walls to go in and out of plant cells. This movement of water is called osmosis. When water moves into a plant cell, the cell expands, much like a balloon does when inflated. Unlike a balloon, [...]