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Chapter 7: Cellular Structure and Function

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Subject: 
Biology
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Tags: 
Biology
Membrane biology
diffusion
Cell Biology
organelles
Transport phenomena
Osmosis
Cell membrane
Tonicity
Passive transport
Semipermeable membrane
Biological membrane
health

Chapter 7: Cellular Structure and Function THE CELL THEORY -All organisims are composed of one or more cells -The cell is the basic unit of structure and organization of organisms -All cells come from pre-existing cells PROKARYOTIC CELL -Simple structure -Contains a plasma membrane -Does not contain membrane bound organelles EUKARYOTIC CELL -Contains a plasma membranre -Contains membrane-bound organelles PLASMA MEMBRANE -Thin, flexible boundary between the cell and its enviornment -Allows nutrients into the cell -Allows waste to leave the cell SELECTIVE PERMEABILITY -The plasma membrane controls the movement of substances into and out of the cell -The plasma membrane is composed of the phospholipid bilayer FLUID MOSAIC MODEL

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