NURSING ANM AND GNM

Detailed explanation-1: -Archaean cell walls do not have peptidoglycan, but they may have pseudopeptidoglycan, polysaccharides, glycoproteins, or protein-based cell walls.

Detailed explanation-2: -Peptidoglycan constitutes the major structural component of the periplasm, and it consists of a polysaccharide covalently cross-linked by short peptides.

Detailed explanation-3: -Archaea do have peptidoglycan, it is called pseudomurein and different in its composition to murein. Most studied Archaea have one cytoplasmic membrane, but more and more species are found which have two membranes. Archaeal cell envelopes lack murein or a lipopolysaccharide (LPS)-containing outer membrane.

Detailed explanation-4: -The cell wall of bacteria containspeptidoglycan, a substance that does not occur in eukaryotes and which contains D-amino acids and unusual sugars.