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3.2 and 3.3 vocabulary

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Term
Definition
Selectively Permable   some substances can pass through the membrane while others cannot  
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Diffusion   process in which molecules move from an area of the higher concentration to an area of lower concetration  
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Osmois   diffusion of water molecules through a selectively permeable membrane  
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Passive Transport   movement of dissolved materials through a cell membrane  
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Active Transport   is the movement of materials through a cell membrane using cellular energy  
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Photosynesis   a cell captures energy in sunlight uses it to make food  
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Autotroph   can make own food  
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Hetertroph   can't make own food  
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Pigment   green color comes from; colored chemical chemical that absorbs light  
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Clorophyll   capture light energy and uses it to power the second stage of photosyensis  
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Stomeata   small openings on the undersides of the leaves  
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