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Homeostasis and Cell Transport

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Term
Definition
Passive Transport   Crossing the cell membrane without energy; with the concentration gradient  
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Diffusion   Movement of molecules from an area of higher concentration to an area of lower concentration  
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Concentration Gradient   The difference in concentration across a distance  
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Equilibrium   When molecules are distributed evenly across the cell and outside the cell  
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Osmosis   Process of water diffusing across a cell membrane from a higher to lower concentration, does not require energy  
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Hypotonic   When the concentration of molecules outside the cell is lower than the concentration in the cytosol  
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Hypertonic   When the concentration of solute molecules outside the cell is higher than the concentration in the cytosol  
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Isotonic   When the concentration of solutes outside and inside the cell are equal  
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Contractile Vacuole    
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Turgor Pressure    
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Plasmolysis    
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Cytolysis    
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Facilitated diffusion    
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Carrier Protein    
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Ion Channel    
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