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Cell Transport

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Term
Definition
semipermeable   only some particles enter and exit the cell  
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cell membrane   maintain homeostasis and regulate what comes in and out of the cell  
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diffusion   movement of particles from a high concentration to a low concentration  
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osmosis   the movement of water from a high to low concentration  
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facilitated diffusion   the use of a carrier protein to move substances from a high to low concentration  
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passive transport   a type of movement the does not require energy, moves substances down the gradient from a high to low concentration  
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active transport   a type of movement that requires energy, moves substances against the gradient from low to high  
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isotonic   equal(same) movement of water in and out of the cell  
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hypertonic   less water outside the cell so water leaves the cell and the cell shrinks  
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hypotonic   more water outside the cell so water enters the cell and the cell swells  
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phagocytosis   large particles(food or bacteria) are surrounded and engulfed by the cell membrane  
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pinocytosis   liquid is brought in by a vesicle  
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exocytosis   cell deposits particles outside the cell  
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active transport examples   endocytosis, exocytosis  
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passive transport examples   diffusion, osmosis, facilitated diffusion  
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Created by: JMHSBIO
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