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big 20 2nd 9 weeks

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
OSMOSIS   The diffusion of water molecules across a selectively permeable membrane  
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CELL MEMBRANE   A cell structure that controls what enters and leaves the cell; is selectively permeable  
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CYTOPLASM   The gel-like substance in the cell that holds cell structures in place  
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EUKARYOTIC   A cell that contains a nucleus and other organelles  
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CELL   The basic unit of structure and function in all living things  
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PHOTOSYNTHESIS   The process by which producers capture and use the sun’s energy to make food for themselves  
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MITOCHONDRIA   A cell structure that produces most of the energy needed to carry out the cell’s functions  
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MEIOSIS   The process that produces four sex cells, each containing half of the usual number of chromosomes  
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RIBOSOME   A cell structure that makes proteins  
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CHLOROPLASTS   A cell structure found in plant cells that contains chlorophyll; where photosynthesis takes place  
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MITOSIS   The stage of the cell cycle during which the cell divides into two identical cells  
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ENDOPLASMIC RETICULUM   A cell structure that forms a passageway for proteins and other materials to be carried around the cell  
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VACUOLE   A cell structure that stores food, enzymes, water and waste  
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CELL WALL   A cell structure found in plant cells that provides protection and support to the plant  
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PROKARYOTIC   A cell that does not contain a nucleus or other organelles  
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NUCLEUS   A cell structure that controls all of the cell’s activities  
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DIFFUSION   The process by which molecules move from an area of high concentration to an area of low concentration; does not use energy  
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TISSUE   A group of cells working together  
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ACTIVE TRANSPORT   The process by which molecules move from an area of low concentration to an area of high concentration; requires energy  
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CELLULAR RESPIRATION   The process of breaking down food to release energy  
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Created by: cindyjritter
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