BIOA01H3 Lecture Notes - Lecture 3: Dynein, Occludin, Centrosome

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7 Dec 2016
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BIOA01H3 Full Course Notes
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Tissue: collection of cells that work together to perform a specific function. In animal, four types of tissue- epithelial, connective, nervous, and muscle. Organs: two or more tissues that combine and function together. Cells in differ in shape and size: cytoskeleton: in eukaryotes, an internal protein scaffold that helps cells to maintain their shape and serves as a network of tracks for the movement of substances within cells. Cell junction: a complex of proteins in the plasma membrane where a cell makes contact with another cell or the extracellular matrix. Cytoskeleton is a structure that helps cells maintain their shape and internal organization: shape and structural integrity of tissues and organs depend on the ability of cells to connect to one another. Structure: network of fibers extending throughout cytoplasm. 3 main protein fibers: microtubules thickest fibers. About 25nm in diameter constructed of protein, tubulin.

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