NEET BIOLOGY

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: Sclerenchyma cells consist of dead cells they are permanent tissues present in plants. They provide hardness and protection for plants.

Detailed explanation-3: -Sclerenchyma is a type of simple permanent tissue. Simple tissues are made up of a group of uniform cells having similar structures and perform the same function. Other than sclerenchyma, collenchyma and parenchyma are also simple tissues.

Detailed explanation-4: -The sclerenchyma is called the dead tissue because it lack protoplasm and has thick secondary walls which do not elongate during cell growth. Hence, mature cells get destroyed inside the sclerenchyma tissues. Example: coconut, jute etc.

Detailed explanation-5: -SCLERENCHYMA. Sclerenchyma cells have thick, lignified secondary walls, lack cell contents at maturity, and occur throughout all plant tissues.