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| Question | Answer |
| Active Transport | movement of materials from a low concentration region to a high concentration region |
| Passive Transport | movement of molecules from a region of high concentration to a region of low concentration. |
| Osmosis | movement of water from a region of high concentration to a region of low concentration |
| diffusion | passive transport small molecules easily diffuse across cell membrane |
| plasma membrane | cell part or structure allows certain materials into & out of the cell |
| glucose | small molecule simple sugar diffuses across a membrane readily |
| CO2 O2 | gases small molecules diffuses across a membrane readily |
| protein | large material complex polypeptide uses active transport to cross the cell membrane |
| starch | complex carbohydrate/molecule active transport |
| saltwater solution | causes water to diffuse out of the cell |
| distilled water | causes water to diffuse into the cell |
| transport | absorption and distribution of materials |
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