Cell Biology 6 - Cell Junctions

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Author:
james14hunter
ID:
286365
Filename:
Cell Biology 6 - Cell Junctions
Updated:
2014-10-20 08:50:15
Tags:
Cell Biology Junctions
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Cell Biology 6 - Cell Junctions
Description:
Cell Biology 6 - Cell Junctions
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  1. Where are cell junctions found?
  2. What are three types of junctions?
    • Impermeable junctions
    • Anchoring junctions
    • Communicating junctions.
  3. How do researchers look at cell-cell junctions?
    They use light microscopy, or electron microscopy for detail.

    • There are two different types of electron microscopy, both of which have particular value.
    •   - Conventional transmission electron microscopy.
    •   - Freeze fracture microscopy.
  4. How are tissues prepared for conventional E.M.?
  5. How are tissues prepared for freeze-fracture E.M?
  6. Why would you sometimes freeze fracture instead of sectioning? What do the two techniques allow you to see differently?




  7. What are two functions of tight junctions?



  8. What function do anchoring junctions provide?
  9. What is the general picture of anchoring junctions, and what are the specifics of anchoring junctions?





  10. What are communicating junctions, and how were they discovered?
  11. What is the structure of gap junctions?
  12. What are some functions of gap junctions?
  13. Give a summary of cell junctions

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