How do materials get into an out of the cell
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| CONCENTRATION GRADIENT | The difference in the concentration of a substance across a distance.
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| EQUILIBRIUM? | The state in which the distribution of a substance is even throughout a region.
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| DIFFUSION | The movement of any substance from a region where its concentration is higher to a region where its concentration is lower.
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| OSMOSIS | The movement of water through a selectively permeable membrane from a more dilute solution to a more concentrated solution.
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| SELECTIVE PERMEABILITY | Certain substances can pass through the cell membrane. Some substances cannot get through.
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| PHOSPHOLIPID | A substance macromolecule of a phosphate group and two fatty acids.
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| CARRIER PROTEIN | Transports specific substances across a cell membrane.
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| SODIUM-POTASSIUM PUMP | A type of carrier protein that uses active transport to take sodium ions out of the cell and bring potassium ions into the cell.
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| LIPID BILAYER | A double layer of phospholipids that is the foundation of a biological membrane
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| PASSIVE TRANSPORT | The movement of materials across the cell membrane that does not require energy on the part of the cell.
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| ACTIVE TRANSPORT | The movement of materials across the cell membrane that requires energy on the part of the cell.
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| VESICLE | A type of organelle that transports packaged materials into or out of the cell.
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| ENDOCYTOSIS | Moves substances into the cell using the cell membrane to create a vesicle.
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| EXOCYTOSIS | Moves substances out of the cell by connecting a vesicle with the cell membrane and releasing the contents to the environment.
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| HYPERTONIC SOLUTION | Water diffuses out of the cell and and the cell shrinks.
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| HYPOTONIC SOLUTION | Water diffuses into the cell and the cell swells.
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| ISOTONIC SOLUTION | Water diffuses equally into and out of the cell- maintaining equilibrium.
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| HOMEOSTASIS | The cell maintains balanced using chemistry and temperature
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katdiver
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