OCR GCSE Biology A · J247
Specification B6.3g · Paper 2 (Foundation), Paper 4 (Higher)
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GCSE Biology · key term
A protective, wax-containing layer covering the outer surface of a leaf's epidermal cells.
Used by OCR
Specification B6.3g · Paper 2 (Foundation), Paper 4 (Higher)
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
A waterproof, waxy layer covering the outer surface of a leaf that acts as a barrier to pathogens.
Revise: Plant DefencesTwo physical plant defences required for this course are the leaf cuticle and the cell wall. They act at different levels: the cuticle protects the outer surface of the leaf, while cell walls protect individual cells within plant tissues.
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