BIOL 206 Study Guide - Final Guide: Blood Vessel, Capillary, Homeostasis
Document Summary
Class review for final: when auxin enters a cell it changes gene transcription and other forms of cell. It stimulates transcription of more proton pumps metabolism. Stimulates movement of proton pumps to plasma membrane. Activates internal signal transduction that makes proton pumps work faster to acidify the cell wall: acidification of cell wall not enough to loosen cell wall. Instead activates enzyme like wedges expansens: cause cell expansion- more water in central vacuole. Once it reaches undifferentiated cells, auxin does not do anything: not at stage in their life to respond to auxin. Which is why you get branching at the base of a plant: auxin does something with differentiated cells. Meristematic ones do nothing: for any receptor (ex mechanoreceptor) stretching of muscle stretches spring like receptors that will result in contraction. Touching knee will not do that but whacking knee will do.
