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Cell membranes

Cell membranes. Membrane models and functions. Describe this image. Why is there a bend in this molecule?. Phospholipid bilayer. What else is missing from this picture?. How does this provide evidence about membrane structure?. Fluid mosaic model for membranes.

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Cell membranes

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  1. Cell membranes Membrane models and functions

  2. Describe this image Why is there a bend in this molecule?

  3. Phospholipid bilayer What else is missing from this picture?

  4. How does this provide evidence about membrane structure?

  5. Fluid mosaic model for membranes

  6. Membrane fluidity: lateral vs flip-flop movement

  7. One way to demonstrate lateral movement

  8. Compare Davson-Danielli to fluid mosaic model

  9. More complex current view of membranes

  10. Membrane functions

  11. Integral proteins have directionality

  12. Membrane synthesis Membranes have two different faces

  13. Molecular dynamics simulation of 256 phospholipid molecules forming a membrane bilayer and 6888 water molecules up and down the membrane. The size of the system was approximately 80x80x75A The total number of atoms in the system was 30464 http://www.fos.su.se/physical/sasha/helge/dppc.html

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