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7.1 & 7.2 Vocabulary

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Term
Definition
Eukaryote   DNA enclosed in a nucleus  
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Cell Membrane   Thin flexible barrier that separates the cell from its environment  
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Cell Theory   All living things are made of one or more cells  
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Nucleus   Cell structure that contains genetic material  
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Cell   Basic unit of life  
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Cytoplasm   Fluid portion of the cell outside the nucleus  
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Prokaryote   DNA not enclosed in a nucleus  
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Organelle   Structure within a cell that acts like a specialized organ  
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Vacoule   Saclike structure that stores materials like water and nutrients  
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Lysosome   Enzyme-filled structure that breaks down complex molecules or worn-out organelles  
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Cytoskeleton   Network of protein filaments that gives a cell its shape and organizes its organelle  
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Centriole   Structure in animal cells that helps organize cell division  
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Ribosome   Structure that assembles proteins  
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Endoplasmic Reticulum   Internal membrane system of a cell where proteins are assembled  
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Golgi Apparatus   Series of flattened sacs that prepares proteins and other materials for export from the cell  
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Chroloplast   Structures in plant cells that captures the sun's energy and changes it into chemical energy  
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Mitochondrion   Organelle that changes the chemical energy in food into a form that is easier for the cell to use  
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Cell Wall   Structure around plant cells, fungus cells, and come bacterial cells that supports and protects  
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Lipid Bilayer   Maintaining the shape of the cell  
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Selectively Permeable   Allows certain molecules or ions to pass through it by means of active or passive transport.  
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Created by: Dory123
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