BIOL 201 Lecture Notes - Lecture 15: Marc Kirschner, Darpin, Cuvette
Document Summary
Thick, large polymers; stiff, can bear heavy load. Porter initially identified microtubules in plant cells; ring shown. Mitosis -- mitotic spindle responsible for separating during mitosis. Growth & shrinkage of microtubules: determine neuron morphology. Cilia: in lungs, in ears, tails of sperm . they beat back and forth. Has (+)ve end, which sprawl out from centre. Figuring out how to control mitotic spindle division could possibly control cancer! When you smoke, the cilia in your throat gets destroyed. After you quit smoking, you start coughing a lot --> since. After you quit smoking, you start coughing a lot --> since your cilia starts to regrow, starts to beat, pushing up all that junk up your throat. The bugs on the far right column do breast-strokes, to swim. All cells produce cilia, even cells that are not. Tubulin and -tubulin are two genes, made independently; however after they are made they come together to form a dimer, and never coming apart after.
