BLG 151 Lecture Notes - Lecture 4: Lipid Bilayer, Cell Envelope, Glycerol

• School: Ryerson University
• Department: Biology
• Course: BLG 151
• Professor: Kimberley Gilbride

Document Summary

Archaeal cells structure (chapter 4 page 82 prescotts 9th ed. ) Cell organization: plasma membrane in archaea is made up of different lipids, archaea lack peptidoglycan. Some consist of s-layer only, others combine s-layer with polysaccharides or proteins or both; some lack cell walls: within the cytoplasm ribosomes , nucleoid and inclusions can be found, locomotion archaea uses flagella. Archaeal cell walls: cell walls exhibit variety in terms of their chemical makeup. They lack peptidoglycan: common type of archaeal cell is the s-layer composed of either glycoprotein or protein, other archaea can have other layers onto of the s-layer such as : S-layer + plasma membrane | protien sheath + s-layer+ plasma membrane | Methanochondroitin + s-layer+plasma membrane | s-layer+ pseduomurein + plasma membrane | polysaccharides +plasma membrane | outermost membrane +intermembrane compartment +plasma membrane |(please refer to chapter 4 page 86 prescotts 9th ed. ) *look at figure 4. 6e* | polysaccharides +plasma membrane|