EVERYDAY SCIENCE

Detailed explanation-1: -Cell Wall Peptidoglycans: Both Gram-positive and Gram-negative bacteria possess cell wall peptidoglycans, which confer the characteristic cell shape and provide the cell with mechanical protection.

Detailed explanation-2: -The outer layer of the bacterial cell is called cell wall, which is composed of a polymer matrix named peptidoglycan. Depending on the structure and the thickness of the cell wall, bacterial cell is classified into two groups: Gram positive and Gram negative bacteria.

Detailed explanation-3: -The peptidoglycan (PG) layer of the bacterial cell wall is a protective polymer composed of cross-linked glycan strands, further cross-linked by peptide units.

Detailed explanation-4: -The cell wall is the outermost covering of plant cells. The cell wall is present only in plants and in some fungi, bacteria and algae. It is present outside the cell membrane and is tough, flexible and sometimes rigid in its texture.

Detailed explanation-5: -Bacterial cell walls are made of peptidoglycan also called as murein, which is made from polysaccharide chains cross-linked by unusual peptides containing D-amino acids.