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BIOL 1080 (218)
Lecture

lecture 5

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Department
Biology
Course
BIOL 1080
Professor
Jim Kirkland
Semester
Winter

Description
Biol 1080 Lecture 5 Reading text ch 3ai 121130 Mechanisms of intercellular communications 1 Direct communication a Gap junctions b Tunneling nanotubules 2 Indirect communication a Chemical messengers b Mechanosignals Cells communicate ALL THE TIME with themselves and others 1 Direct intercellular communicationa Protein subunits between cells in plasma membrane form gap junctionsPore size is very small ions electrical flowSmall molecules2 cells are very close gap junctions are tiny and plentiful 100s or more between cells b Tunneling nanotubes i Much longer than gap junctions ii Larger pore size can move sizes up to proteins
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