The bacterial cell wall the cell wall is the outer most rigid structure which provides the structure to the bacterial cell moreover it helps the cell by providing protection to the cell from osmotic lysis toxic chemicals and other pathogens the chemical structure of the bacterial cell wall is similar in different bacteria. The bacteria cell wall is an important structure which is rigid and non living envelop around the cell it is present just above the cell membrane and gives a specific shaped to the cell because of this cell wall bacteria can survive harshest environmental conditions like the drought heat chemical exposure pressure etc. Bacterial cell wall structure composition and types cell wall is an important structure of a bacteria it give shaperigidity and support to the cell on the basis of cell wall composition bacteria are classified into two major group ie gram positive and gram negative. The bacterial cell wall represents a very complex structure disconnecting the interior of single cell organisms from the environment thus protecting but also enabling them to interact with the surrounding milieu and to exchange both substances and information