Cell Wall
Subject:
Tags:
Cell Wall
Peptidoglycan
Cell Wall
Biology Lecture on Prokaryotes
Subject:
Tags:
+ Biology 10504 Chapter 27: Bacteria and Archaea + About me 2 Bachelors? degree: Concordia College in Minnesota Ph.D. in Biomedical Science: University of California, San Diego Moved to Fort Worth Jan 2010. Stayed in sunny San Diego for postdoctoral fellowship studying Anthrax. + Upper level courses I teach General Microbiology (BIOL 30303) 2 hr lecture + 3 hr lab (spring) Medical Microbiolgy (BIOL 40303) 3 hr lecture (Fall) + iClicker Questions I am taking BIOL 10504 because A)? I?m pre-med B)? I?m interested in another pre-health profession (pre-vet, pre-dental, etc.) C)? I?m interested in going to graduate school in Biology D)? I just like Biology and wanted to learn more about it E)? None of the above 4 +
chapter 27 notes
Subject:
Tags:
Chapter 27- bacteria and archaea Hypotonic hypertonic Lysis Mycoplasmas- bacteria that lack cell walls Gram positive bacteria- cell walls made of peptidoglycan Penicillin works on gram positive bacteria by preventing the synthesis of peptidoglycan Cell wall layers are: outermost is capsule, then lipopolysaccharide, then peptidoglycan, then phospholipids Cell wall is source of endotoxin Gram negative bacyeria- outer membrane with toxic lipopolysaccharides Plasmolysis- loss of water due to osmosis causes cytoplasm to pull away from cell wall Occurs in environments with high sugar content DNA should be located in the following to avoid cell death by adverse conditions, such as freezing, drying, or high temp: Nucleoid, endospore, plasmid
chapter 26 notes
Subject:
Tags:
Chapter 26 Rooted Tree- has an ancestor common to all organisms on the tree Kingdom, phylum, class, order, family, genus, species Node- spot where a common ancestor exists of branches coming off of it Phylocode method of classification- naming based on similarities Homoplasy- a trait (genetic, morphological etc.) that is shared by two or more taxa because of convergent evolution i.e. 4 chambered heart in mammals and birds Clade- a group consisting of an ancestor and all its descendants, a single "branch" Cladistics- grouped together based on whether or not they have one or more shared unique characteristics that come from the group's last common ancestor and are not present in more distant ancestors
Need Help?
We hope your visit has been a productive one. If you're having any problems, or would like to give some feedback, we'd love to hear from you.
For general help, questions, and suggestions, try our dedicated support forums.
If you need to contact the Course-Notes.Org web experience team, please use our contact form.
Need Notes?
While we strive to provide the most comprehensive notes for as many high school textbooks as possible, there are certainly going to be some that we miss. Drop us a note and let us know which textbooks you need. Be sure to include which edition of the textbook you are using! If we see enough demand, we'll do whatever we can to get those notes up on the site for you!
