AP BIOLOGY

Detailed explanation-1: -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-2: -The cell membrane is also known as the plasma membrane. It is the outermost covering of animal cells.

Detailed explanation-3: -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. Peptidoglycan is a rigid, highly conserved, complex structure of polymeric carbohydrates and amino acids.