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Cell Structure

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Term
Definition
Cells   The basic unit of structure and function in living things.  
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Cell Wall   Protects and supports the cell.  
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Cell Membrane   Controls what enters and leaves the cell.  
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Nucleus   The control center of the cell.  
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Mitochondria   Convert energy from food molecules to energy the cell can use.  
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Endoplasmic Reticulum   Carries proteins and other materials from one part of the cell to another.  
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Ribosomes   Produce proteins inside cells.  
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Golgi Bodies   Organelles that package and deliver proteins.  
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Vacuoles   Store food and other materials needed by the cell.  
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Lysosomes   Contains chemicals that break down food particles and old cell parts.  
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Chloroplasts   Organelles that use energy from sunlight to produce food.  
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Resolution   Refers to how sharp an image is.  
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Element   A substance that cannot be broken down into a simpler substance.  
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Compound   Two or more elements chemically combined.  
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Enzymes   Catalyst that speeds up chemical reactions.  
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Diffusion   Movement of molecules from an area of high concentration to an area of low concentration.  
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Osmosis   Diffusion of water through a selectively permeable membrane.  
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Passive Transport   Refers to the movement of materials through the cell membrane without using the cells energy.  
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Active Transport   Refers to the movement of materials through the cell membrane when the cells energy is required.  
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Created by: sikkwl
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