bi7 - Cells and Organelles; Cells The Cell Membrane The

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Cells and Organelles; Cells and Organelles; The Cell Membrane The Cell Membrane Book Reference: p.16-p.19 Book Reference: p.16-p.19
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Do all membranes have the same  basic structure? Both the cell surface  membrane and the membranes  surrounding certain organelles  have the same basic structure.   Much of the membrane is  made up of a 'sea' of  phospholipids with protein  molecules 'floating' in  between the phospholipids .  
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Where are proteins located within  the membrane? What is an intrinsic  protein? What is an extrinsic  protein? Why is it called the  fluid mosaic model ?
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INTRINSIC 1: Channel Proteins Allow movement of  substances, such as  glucose, across the  membrane NO ATP  REQUIRED
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Actively transport  substances, such as  minerals, across the  membrane ATP is REQUIRED INTRINSIC 2: Carrier Proteins
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      (a) Channel       VS    (b) Carrier                           Proteins 
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bi7 - Cells and Organelles; Cells The Cell Membrane The

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