NEET BIOLOGY

Detailed explanation-1: -The bacterial cell wall consists of peptidoglycan, an essential protective barrier for bacterial cells that encapsulates the cytoplasmic membrane of both Gram-positive and Gram-negative bacterial cells.

Detailed explanation-2: -There are three principal layers in the envelope; the outer membrane (OM), the peptidoglycan cell wall, and the cytoplasmic or inner membrane (IM).

Detailed explanation-3: -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-4: -It is important to note that not all bacteria have a cell wall. Having said that though, it is also important to note that most bacteria (about 90%) have a cell wall and they typically have one of two types: a gram positive cell wall or a gram negative cell wall.