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Transport Across a Cell Membrane
Created by Mary Buttiglieri for Middle School Life Science
Students will test their knowlege of diffusion, osmosis, facilitated diffusion, active transport, endocytosis, excytosis
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| diffusion | movement of molecules from high to low concentration until equilibrium is reached |
| equilibrium | dynamic state where the concentrations on eother side of a cell membrane are equal, What moves in = what moves out |
| osmosis | diffusion of water |
| cell membrane | what the molecules pass through |
| ATP | the chemical that provides the energy required for active transport |
| turgor pressure | keeps cell inflated |
| facilitated diffusion | moves material from high to low concentration using carrier or transport proteins |
| active transport | molecules move from low to high concentration using carrier proteins and ATP's energy |
| carrier proteins | these are required for facilitated diffusion and active transport |
| lipid bilayer | two layers of lipids that make up the cell membrane |
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