EVERYDAY SCIENCE

Detailed explanation-1: -The Cell Wall A cell wall is a rigid layer that is found outside the cell membrane and surrounds the cell. The cell wall contains not only cellulose and protein, but other polysaccharides a s well . The cell wall provides structural support and protection.

Detailed explanation-2: -6.3.2.3 Sclerenchyma Tissue Sclerenchyma tissue, when mature, is composed of dead cells that have heavily thickened walls containing lignin and a high cellulose content (60%–80%), and serves the function of providing structural support in plants.

Detailed explanation-3: -The vacuole is the cell organelle that stores excess water and gives support and rigidity to a plant cell. It occupies about 80% of the plant cell volume.

Detailed explanation-4: -Sclerenchyma is a simple permanent tissue which gives toughness and rigidity to different plant organs due to the presence of heavily thickened lignified cell walls.It is also known as the most effective mechanical tissue of the plant.