BI110 Chapter Notes - Chapter 10: Microvillus, Organism, Centrosome
Document Summary
The cell: may be single or part of ensemble. Tissues and organs: tissue: collection of cells that work together to preform a speci c function, two or more tissues combine together and make up an organ. Cytoskeleton: the cytoskeleton provides structural support and enable the movement of substances within the cell. Microtubule: a hollow tube formed from tubulin dimers, they radiate toward to the cell periphery from the centrosome. The arrangement helps withstand compression and cell shapes: move with cilia and gilia. Micro lament: micro laments are short and extensively branched, beneath the plasma membrane cells, where they provide support to cells, a micro lament is a double helix of actin and monomers. Friday, december 8, 2017: moves by crawling. Microtubules and micro laments are dynamic: always changing. Become longer by the addition of subunits to their ends and shrink by the loss of subunits. Subunits can be added to both ends.
