NEET 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: -All tissues in the xylem except the xylem parenchyma are dead. Their cytoplasm is highly reduced and they only perform the function of conduction. The xylem tissues also lack cell organelles. Therefore, they are considered dead.

Detailed explanation-3: -It consists of vessels, tracheids, xylem fibres and xylem parenchyma. Except for xylem parenchyma, all other components of xylem tissue are dead. Xylem parenchyma contains parenchymatous cells having a fully functional nucleus and are capable of performing various life processes.

Detailed explanation-4: -Xylem is a tissue consisting of dead, hollowed-out cells that form a system of pipes. The walls of xylem cells are lignified (strengthened with a substance called lignin ). This allows the xylem to withstand pressure changes as water moves through the plant.

Detailed explanation-5: -Xylem is a plant tissue which is complex and is responsible for water transportation and nutrients to the plants. Xylem vessel cells can be both alive and dead. But according to the researchers and botanists xylem tissue elements are alive except for the parenchyma which is dead. Hence, the xylem is a dead tissue.