AP BIOLOGY

Detailed explanation-1: -The plant tissue with dead cells is called the xylem. Dead cells make up these tissues since they can give plants mechanical strength and don’t need a lot of maintenance. It is a type of plant vascular tissue . Mechanical strength can be helped by xylem fibers.

Detailed explanation-2: -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-3: -Sclerenchyma: Sclerenchyma cells consist of dead cells they are permanent tissues present in plants. They provide hardness and protection for plants.

Detailed explanation-4: -Flax. Flax bast fiber cells are an ideal example of sclerenchyma fibers, with extraordinary cell wall thickness and length. Their major function is to provide strength to the long (1 m) and thin (2 mm) flax stem.

Detailed explanation-5: -Sclerenchyma is the dead mechanical tissue in plants. They are made up of long and narrow cells. These cells contain a cell wall that consists of lignin. The major function of these tissues is nothing other than giving mechanical support to the plant body.