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Published byMercy Johnston Modified over 8 years ago
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Cell Membrane Structure and Function
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Cell Membrane Structure Pg. 95 A.Function 1.Allows for movement into and out of the cell 2.Protection / Support 3.Maintains homeostasis
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Cell Membrane Structure Pg. 95 B. Fluid Mosaic Model 1. Fluid – moves
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Fluid
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Cell Membrane Structure Pg. 95 B. Fluid Mosaic Model 1. Fluid – moves 2. Mosaic – many parts
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Mosaic 1.Phospholipids 2.Membrane Proteins 3.Cholesterol 4.Surface Carbohydrates
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Fluid-Mosaic Model
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Cell Membrane Structure Pg. 95 C. Parts 1.Phospholipid Bilayer
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Phospholipid Bilayer
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Cell Membrane Structure Pg. 95 C. Parts 2.Proteins Carrier – moves large particles
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Many Functions of Membrane Proteins Outside Plasma membrane Inside Transporter Cell surface receptor Enzyme activity Cell surface identity marker Attachment to the cytoskeleton Cell adhesion
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Proteins
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Cell Membrane Structure Pg. 95 C. Parts 3.Lipids – (Cholesterol)
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Cholesterol
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Cell Membrane Structure Pg. 95 C. Parts 4.Carbohydrates cell recognition, cell signaling, cell adhesion
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Carbohydrates
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Cell Membrane Structure Pg. 95 D. Description 1. Semi-permeable 2. Only allows certain materials through
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Semi-Permeable
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Pg. 94
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