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Cell Transport, Photosynthesis & Respiration

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Term
Definition
selectively permeable   a property of cell membranes that allows some substances to pass through, while others cannot  
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diffusion   the process by which molecules move from an area in which they are highly concentrated to an area in which they are less concentrated  
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osmosis   the diffusion of water molecules through a selectively permeable membrane  
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passive transport   the movement of materials through a cell membrane without using energy  
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active transport   the movement of materials through a cell membrane using energy  
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photosynthesis   the process by which plants and some other organisms capture light energy and use it to make food from carbon dioxide and water  
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pigment   a colored chemical compound that absorbs light  
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chlorophyll   a green pigment found in the chloroplasts of plants, algae, and some bacteria  
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chloroplast   a structure in the cells of plants and some other organisms that captures energy from sunlight and uses it to produce food  
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stomata   the small openings on the undersides of most leaves through which oxygen and carbon dioxide can move  
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respiration   the process by which cells break down simple food molecules to release the energy they contain  
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fermentation   the process by which cells break down molecules to release energy without using oxygen  
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matter   anything that has mass and takes up space  
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energy   the ability to make change  
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molecule   the smallest unit of a compound  
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Created by: skrebbeks
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