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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 |