http://en.wikipedia.org/wiki/Bacteria
In most bacteria, a cell wall is present on the outside of the cytoplasmic membrane. The plasma membrane and cell wall comprise the cell envelope. A common bacterial cell wall material is peptidoglycan (called "murein" in older sources), which is made from polysaccharide chains cross-linked by peptides containing D-amino acids.Bacterial cell walls are different from the cell walls of plants and fungi, which are made of cellulose and chitin, respectively.The cell wall of bacteria is also distinct from that of Archaea, which do not contain peptidoglycan.
In most bacteria, a cell wall is present on the outside of the cytoplasmic membrane. The plasma membrane and cell wall comprise the cell envelope. A common bacterial cell wall material is peptidoglycan (called "murein" in older sources), which is made from polysaccharide chains cross-linked by peptides containing D-amino acids.Bacterial cell walls are different from the cell walls of plants and fungi, which are made of cellulose and chitin, respectively.The cell wall of bacteria is also distinct from that of Archaea, which do not contain peptidoglycan.
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