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| Diffusion |  The movement of particles from areas of higher concentration to areas of low concentration |
| Osmosis | The diffusion of water through a semi-permeable membrane |
| Passive transport | The movement of substance through a cell membrane without the use of energy |
| Active transport | The movement of substance through a cell membrane that requires the use of energy |
| Endocytosis | The active transport process that brings particles into the cell |
| Exocytosis | The active transport process that sends wastes and other substances out of the cell. |
| Photosynthesis | Process in which sunlight, carbon dioxide and water are used by plants, algae and some bacteria to make food |
| Cellular Respiration | The process in which cells use oxygen to break down food to make C02, water and energy |
| ATP | A complex molecule that supplies the energy that fuels cell activities |
| Fermentation | The breakdown of food without the use of oxygen |