Cell wall of the Gram-negative is more complicated than the Gram-positive cell wall. The amount of peptidoglycan present in the Gram-negative cell wall is considerably lower than that of that of the cell’s Gram positive wall. There are only a few layers of peptidoglycan (2-8 millimeters) are visible in the cell membrane’s outermost. A Gram-negative wall that lies outside the peptidoglycan layer has three primary components–(a) the lipoprotein layer, (b) outer membrane as well as (c) Lipopolysaccharides.