EVERYDAY SCIENCE

Detailed explanation-1: -Mature sclerenchyma cells are usually dead cells that have heavily thickened secondary walls containing lignin. The cells are rigid and nonstretchable and are usually found in nongrowing regions of plant bodies, such as the bark or mature stems.

Detailed explanation-2: -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: -Sclerenchyma cells are specialized plant cells that exist to provide strength and support. They are present in all kinds of plants including grasses, trees, and flowering plants.

Detailed explanation-4: -Sclerenchyma tissues are located in several areas. E.g. Sclereids are found in the shells of nuts, stones of fruits and fibres are abundantly found in the inner bark, wood, leaf veins, etc.