The Cell wall Peptidoglycan G+ Bacteria (-90%) G- Bacteria(-10%) Gram Positive bacterial Cell Wall Gram Negative Bacterial Cell Wall Lipoteichoic Acid Outer Lipid Membran Peptidoglycan Cell Wall Peptidoglycan Plasma Membrane Plasma Membrane Alternating copolymer of 1-4)-N-acetyl-D-glucosamin and N-acetylmuramic acid Ala.D-GLI Pentaglycine cross-link L-LyS-D-Ala tetrapeptideG+ Bacteria (~90%) G- Bacteria(~10%) Peptidoglycan The Cell Wall