01:119:116 Lecture Notes - Lecture 2: Photoheterotroph, Syphilis, Sulfolobus
25 Feb 2016
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What basic features do all bacteria possess, what does gram stain tell us about bacteria. Cc ways that genetic diversity arises in bacteria cc to eukaryotic mechanisms (and to out species) Cc the major groups of bacteria to each other and the archaea. It will swell because of high salt concentration inside cell. Gram+ would because it has a lot more peptidoglycan in thick walls. Gram + thick walls, lots of peptidoglycan hold violet stain- look purple. Gram- thin peptidoglycan does not hold violet- look pink. *antibiotic works on bacteria bc alive but not on virus bc dead Taxis-a directed movement toward or away from a stimulus. Hydrogen ions cause spinning movement of he hook. H+ and the etc (no atp like us) Very fast because does not take time to do. Two factors give rise to high level of genetic diversity. No crossing over because it quickly replicates, mutations are cause of new evolution.
