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what substance makes up the cell walls of xylem vessels

Sagot :

Answer: Lignin

Explanation: 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.

Answer:

lignin

Explanation:

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.