AP BIOLOGY

Detailed explanation-1: -Xylem is a plant tissue that is complex and is responsible for water transport and nutrients to the plant. Xylem-type vessel cells can be either alive or dead. According to researchers and botanists, the elements of xylem tissue are dead except for the living parenchyma.

Detailed explanation-2: -Xylem is a complex permanent tissue specialized for transport of water and minerals. The cells of xylem are dead at maturity and devoid of protoplasm except for xylem parenchyma cells, which are living cells.

Detailed explanation-3: -It is a living tissue, which is responsible for transporting food and other organic materials. Xylem generally consists of dead cells (parenchyma is the only living cell present in the xylem).

Detailed explanation-4: -Xylem functions as a conducting tissue for water and minerals from roots to the stem and leaves. It also provides mechanical strength to the plant parts.

Detailed explanation-5: -Xylem consists of tracheids, vessels, parenchyma, and fibers. Vessels consist of vessel elements joined together in files by large perforation plates, large gaps in the end walls between successive vessel elements, while tracheids have tapering ends that overlap with adjacent cells, and lack perforation plates.