AP BIOLOGY

Detailed explanation-1: -Xylem fibres are non-living sclerenchyma cells. Because of their elasticity and tensile strength, they are an important component of the xylem. They protect and provide mechanical support to the xylem’s major water-carrying tissues. Water is transported through xylem fibers.

Detailed explanation-2: -Xylem fibers are the thick lignified fibers that are made up of the dead sclerenchyma cells. These are located between the xylem vessels and the tracheid of the xylem in a plant. They are hard tissues and are woody in nature.

Detailed explanation-3: -The xylem consists of tracheary elements, xylem parenchyma cells, and xylem fiber cells. Tracheary elements are dead, hollow cells with patterned cell walls comprising xylem vessels and tracheids, which function as conductive hollow tubes for water and nutrient transport throughout the plant body.

Detailed explanation-4: -The xylem tissues also lack cell organelles. Therefore, they are considered dead.

Detailed explanation-5: -The xylem vessels and tracheids are sclerenchymatous cells.