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Ch6Membranes - AP Biology Chapter 6 Membranes Part I RJ 6th...

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AP Biology Chapter 6 Membranes: Part I RJ 6th edition 1. Review the structure of the phospholipid bilayer. How does the structure of the phospholipid molecule determine the organization and structure of the cell membrane? Answ Q 1 p 122 2. What is the evidence that the bilayer is fluid? 3. List or diagram the molecules other than phospholipids associated with the cellmembrane and briefly describe their function. 4. Study the diagrams of the membrane proteins. Locate the alpha helix and pleated sheets. How aer these molecules imbedded in the phospholipid bilayer? 5. What are the functions of the protein components of the membrane? Is this important? Why?
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6. Define diffusion. 7. What is facilitated diffusion, what part of the membrane is involved and what imolecules will move through the membrane by this process? Is it active or passive? 8. Review osmosis. What is an aquaporin? How is this different from what we taught you in Honors Bio? (Hey, scientists learn new stuff) Are aquaporins rare or widespread in cells? Evidence?
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