BIOL2000 Lecture 9: Lecture 9-Inside the Cell
2 Apr 2016
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Document Summary
Dynamic cytoskeleton: made up of microtubules, actin laments, intermediate laments. Can polymerize and depolymerize to alter the cell: maintains the cell shape and provides support which include properties of rigidity, can alter the cell"s shape, microtubules. Ordered or polarized: to transport vesicles from the er out of the cell. Various types of arrangements (can be straight or bendy: as pertaining to supporting the function of the cell. Made up of 1 tubulin (alpha and beta dimers) Originate from the microtubule organizing center (jelly: centrosome in animals (only one, two bundles called centrioles (90 degrees) Tracks: microtubules: secretory vesicles attached to microtubule track which acts as railroad tracks, requires atp to move across the microtubules. Motor proteins: move vesicles along microtubules, has head and a tail. There are two because they walk like a pair of legs: require atp and kinesin (motors) for vesicle transport. Walk towards the + end: dynein do the opposite.
