AP_chapter_11_closed_notes

AP_chapter_11_closed_notes - Chapter11notes Cell...

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    Chapter 11 notes Cell Communication
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    The Cellular Internet Trillions of cells in a multicellular organism  must communicate together to enable  growth, survival, and reproduction The same cell-signaling mechanisms tend  to show up again and again
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    Concept 11.1 Yeast cells use cell signaling to identify  mates - two sexes, type a and type  α - cells secrete a chemical signal that  binds to receptors on the opposite cell - causes the two cells to grow toward  each other so they can fuse and mate
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    Concept 11.1 __________________________:  process  by which a signal on a cell’s surface is  converted into a specific cellular  response
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    Concept 11.1 Receptor α factor a factor a α α a Exchange of mating factors Yeast cell, mating type a Yeast cell, mating type α Mating New a/ α cell a/ α 1 2 3
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    Concept 11.1 Some cells communicate through direct  contact - use of cell junctions - animal cells use membrane-bound cell  surface molecules
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    Concept 11.1 Plasma membranes Gap junctions between animal cells (a) Cell junctions Plasmodesmata between plant cells (b) Cell-cell recognition
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    Concept 11.1 Some molecules only travel a short 
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AP_chapter_11_closed_notes - Chapter11notes Cell...

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