NEET BIOLOGY

Detailed explanation-1: -Cell walls in prokaryotes serve as a form of protection and prevent lysis (bursting of the cell and expulsion of cellular contents). Structurally, prokaryotic cell walls consist of two layers: An inner layer that is made up of peptidoglycans. An outer layer that is composed of lipoproteins and lipopolysaccharides.

Detailed explanation-2: -The cell wall is a rigid layer that is found outside the cell membrane and surrounds the cell, providing structural support and protection.

Detailed explanation-3: -The cell wall surrounds the plasma membrane of plant cells and provides tensile strength and protection against mechanical and osmotic stress. It also allows cells to develop turgor pressure, which is the pressure of the cell contents against the cell wall.

Detailed explanation-4: -All cell walls contain two layers, the middle lamella and the primary cell wall, and many cells produce an additional layer, called the secondary wall. The middle lamella serves as a cementing layer between the primary walls of adjacent cells.

Detailed explanation-5: -The cell wall is made up of cellulose. Plant cells require the cell wall for protection against variations in temperature, high wind speed, atmospheric moisture, etc. The cell wall gives rigidity to the cell of a plant.