8.2 - 8.2 How do adjacent cells connect and communicate?...

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8.2 How do adjacent cells connect and communicate? They start off by talking about multicellularity and how the cells in a multicellular organism have distinct structures and functions Then they say these multicellular organisms also have tissues which are similar cells that perform a similar function Then we go into cell-cell attachments in eukaryotes They use plants and animals to show the diversity of structure In plants the cell walls sandwich a central layer called the what? Answer: middle lamella and what is the middle lamella made of TORI? Answer: gelatinous pectins The gel layer glues the cell walls together In animals the gel layer is made of gelatinous polysaccharides. The cytoskeleton- ECM hold the animal cells together and proteins help to reinforce this structure Connections are very important in epithelia because those layers must be sealed to protect organs and internal structures There are two types of cell-cell attachment structures that exist in epithelia and other structures that the book covers what are they: answer: tight junctions and desmosomes
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This note was uploaded on 02/12/2012 for the course SCI 2341 taught by Professor Yates during the Spring '11 term at Alabama.

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8.2 - 8.2 How do adjacent cells connect and communicate?...

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