The cell wall of xylem cells is rich in

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(C) Xylem is a complex permanent tissue that functions primarily in the conduction of water and minerals from roots to the rest of the plant.The secon

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Lignin

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(C) Xylem is a complex permanent tissue that functions primarily in the conduction of water and minerals from roots to the rest of the plant.The secondary cell walls of xylem elements,particularly tracheids and vessels,are thickened with a complex polymer called $Lignin$.$Lignin$ provides structural support and mechanical strength to the xylem,allowing it to withstand the negative pressure generated during transpiration.Therefore,the cell wall of xylem cells is rich in $Lignin$.

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