Combined Science GCSE
Lignin
What Lignin means in Combined Science GCSE, as defined for Pearson Edexcel.
Definition of Lignin
A tough polymer that strengthens the cell walls of xylem vessels, providing support to the plant.
Topics that use Lignin
- Plant structures and their functions (Pearson Edexcel GCSE)
Related terms
Using Lignin in the exam
Definition questions usually carry one or two marks, and examiners look for the precise wording. Write the definition from memory, check it against the version above, and then use the term in a longer answer on the same topic so it sticks.
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