Question:

Xylem vessels function in supporting the plant.the wall of the vessels is strengthened by a chemical deposit .

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what is the chemical deposit called??

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  1. one of the three types of lignin


  2. Lignin, a water proof substance that prevents osmosis of water outside the xylem, thus keeping the turgor pressure.

  3. Xylem vesssels are strengthened by rings or spirals of lignin.

    Hope this helps!

  4. Lignin.

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