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Created page with "==Key Stage 4== ===Meaning=== Lignin is a chemical that builds up in the cell walls of xylem cells."
==Key Stage 4==
===Meaning===
[[Lignin]] is a [[chemical]] that builds up in the [[Cell Wall|cell walls]] of [[Xylem Cell|xylem cells]].
===Meaning===
[[Lignin]] is a [[chemical]] that builds up in the [[Cell Wall|cell walls]] of [[Xylem Cell|xylem cells]].