Biology GCSE
lignification
What lignification means in Biology GCSE, as defined for OCR.
Definition of lignification
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Reference: OCR
Thickening and reinforcement of xylem vessel walls with waterproof lignin spirals, which resist collapse under negative hydrostatic tension.
Topics that use lignification
- The challenges of size (OCR GCSE)
Related terms
- active transport of minerals
- arteries
- blood plasma
- boundary layer
- compound measures
- diffusion distances
- double circulatory system
- erythrocyte adaptations
Using lignification in the exam
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