The different components of xylem are- tracheids, vessel elements, xylem fibers and xylem parenchyma. Tracheids, vessel elements and xylem fibers are dead cells of the xylem. The only living cells of xylem are parenchyma cells. Either tracheids or vessel elements are found in one xylem tissue.
Living component of xylem is Xylem parenchyma.
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