BIS 2A Lecture Notes - Lecture 6: Proteobacteria, Passive Transport, Alphaproteobacteria
29 Apr 2019
School
Department
Course
Professor
Document Summary
Proteobacteria within died off but the genetic information within stayed. Gases, small uncharged polar molecules, and water can get through. Large molecules, ions, and charged polar molecules cannot easily get through. Open way to filter things to let larger or charged molecules pass through the bilayer. Responds to particular compound to let things through the bilayer. Diffusion - passive transport - does not use energy. Problem - larger cells have a diffusion/reaction problem. Used for muscle contraction, cell division, cell motility, vesicle and organelle movement. Resist compression, track for vesicles to move on, pull replicated chromosomes together. Cells take things from the environment into cell.
