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9th grd Active Cell
| Question | Answer |
|---|---|
| active transport | movement of a substance across the plasma membrane against the concentration gradient and requires energy |
| ATP | adenosine triphosphate-provides energy to drive many process within a cell |
| coupled transport | the simultaneous transport of 2 substances across a membrane |
| endosytosis | process by which a cell surrounds a substance in the outside environment enclosing the substance in a plasma membrane. The membrane pinches off and leaves substances in the cell. |
| exocytosis | cells use this to expel waste and secrete substances made by the cell |
| protein pumps | transport proteins that require energy to do work |
| catalyst | substance that increases the rate of chemical reaction ;ile emzymes |