Lecture_07 - Lecture 7 Prokaryotic Cell Envelopes BBOM 11e...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Lecture 7 Prokaryotic Cell Envelopes BBOM 11e Sec. 4.8-4.9 , 11.9 Virtual Field Trip Microbial Cell Behavior Motility and Chemotaxis BBOM 11e Sec. 4.14, 4.16
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Most Bacterial Cell Walls Contain Peptidoglycan Glycan tetrapeptide repeating structure NAM NAG Read: BBOM 11e Sec. 4.8-4.9 Peptide cross-linkages B 1-4 Linkage
Background image of page 2
Peptidoglycan Periplasmic Space (The space between the inner and outer membranes) Lipoteichoic Acids Lipoprotein Lipopolysaccharide (LPS) Bound to membrane Bacterial Cell Walls: Gram-negative vs. Gram-positive Outer Membrane No Outer Membrane Teichoic Acids Polyalchohol phosphates Provides negative charges
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Archaeal Cell Envelopes Bilayer Monolayer: linkages Isoprene Fatty acid Bacteria Eukarya Archaea Pseudopeptidoglycan (No Muramic acid, B 1-3 Linkages) Glycoproteins Protein subunit layers (a.k.a. S-layers) Ester Ether BBOM 11e, p.68 BBOM 11e , p. 78-79 Ether Ether Ether-linked lipids in cell membrane Polysaccharides Diverse Cell Wall Structure and Chemistry
Background image of page 4
Cell Wall Functions 1. Resist Turgor Pressure 2. Maintain Rigidity and Shape 3. A Filter for Macromolecules e.g. Porins in Gram-negative outer membrane
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/19/2008 for the course ECON 1110 taught by Professor Wissink during the Fall '06 term at Cornell University (Engineering School).

Page1 / 12

Lecture_07 - Lecture 7 Prokaryotic Cell Envelopes BBOM 11e...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online