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Cell Processes
| Term | Definition |
|---|---|
| four functions of living things | grow, obtain nutrients, remove waste, reproduce |
| diffusion | the movement of particles from high concentration to low concentration |
| Osmosis | diffusion of water |
| hypotonic | to grow, lower concentration of water inside cell, so water moves in |
| semi-permeable | only certain substances can pass through |
| hypertonic | cell shrinks, lower concentration of water outside cell, so water moves out |
| isotonic | equilibrium has been reached, cell won't change size |
| active transport | larger particles moving from low concentration to high concentration |
| passive transport | smaller particles moving from high concentration to low concentration |
| ATP | energy |
| endocytosis | "within the cell" |
| exocytosis | "outside the cell" |
| cellular respiration | animal cells using oxygen to break down food (glucose) |
| photosynthesis | plant cells using sunlight, carbon dioxide, and water to make food |
| active transport | requires energy |
| passive transport | does not require energy |
| cellular fermentation | breaks down glucose without the use of oxygen |
| chlorophyll | pigment that absorbs light energy and gives plants its green color |