Question

why xylem is called dead tissue?what makes it a dead tissue?

Answer 1

Non-vascular plants such as mosses don't have vascular tissue, but in all other plants xylem transports water around the plant. Xylem cells are like zombies in that they are dead when functional. ... They also have small holes called pits on their sides, which allow water to move laterally.

Xylem is the tissue of vascular plants that transports water and nutrients from the soil to the stems and leaves. ... The water‐transporting cells of mature xylem are dead, and therefore the transport of water is mostly a passive process with a very small active root pressure component.