The gram-negative cell wall PM Cell The gram-positive cell wall OM wall M Outer membrane PM Peptidoglycan Peptidoglyc Plasma membrane Plasma membrane enplasmIc Cell wall space Source: Brooks GF, Carroll KC, Butel JS, Morse SA, Mietzner TA: Jawetz, Melnick, Adeiberg's MedicalMicrobiology26thEdition:www.accessmedicine.com Copyright O The McGraw-Hill Companies, Inc. All rights reserved Chapter 2 p. 24Chapter 2 p. 24 11