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Mr. Radeke
Mr. Radeke Chapter 3 Section 2 Life Science
| Question | Answer |
|---|---|
| Selectively Permeable | A property of cell membranes that allows some substances to pass through, while others cannot. |
| Diffusion | The process by which molecules move from an area of higher concentration to an area of lower concentration. |
| Osmosis | The diffusion of water molecules through a selectively permeable membrane. |
| Passive Transport | the movement of materials though a cell membrane without using the cell’s energy. |
| Active Transport | The movement of materials through a cell membrane using energy. |
| By what process do smalls molecules move into cells? | Diffusion. |
| How is osmosis related to diffusion? | Diffusion is the process by which small molecules move from an area of higher concentration to an area of lower concentration; osmosis is the diffusion of water molecules through a selectively permeable membrane. |
| What prevents cells from growing very large? | If cells were very large, it would take much longer for molecules entering the cell and brings them into the cell, or carries them out in a similar way. |