Microbiology Chapter 4 Part 4

Table of Contents: 00:00 - Structures Internal to Cell Wall 00:12 - Plasma Membrane 00:45 - Plasma Membrane: structure 01:55 - Fluid Mosaic Model 02:59 - Plasma Membrane: Function 05:04 - Plasma Membrane: Damage 06:11 - Movement of Materials across Membranes 06:56 - Figure 4.17a 08:01 - Facilitated diffusion Requires a transporter protein in the membrane Channel proteins (porins), carrier proteins Transports ions/larger molecules with concentration gradient No energy input 09:04 - Figure 4.17d 10:11 - Bacteria are subjected to 3 osmotic conditions 13:10 - Active processes: Movement of molecules against concentration gradient Require transporter proteins and energy input Active transport Group translocation Molecule is chemically altered during transport 15:06 - Figure 4.6 15:37 - Bacterial cytoskeleton 16:33 - Bacterial cytoskeletal proteins FtsZ (homolog of Tubulin) Recruits other proteins to division site (septum) Form Z-ring that constricts during cytokinesis Mutants are filamentous 17:05 - Bacterial cytoskeleton 17:52 - Bacterial cytoskeleton 18:21 - Bacterial cytoskeleton