The waxy cuticle stops most pathogens entering a leaf. Through which structures do pathogens usually get into a leaf?
Through the stomata in the leaf epidermis
Through the xylem vessels in the leaf veins
Through the phloem tubes in the leaf veins
Through the chloroplasts in the palisade cells
58 exam-style questions on AQA GCSE Biology 3.3 Plant disease, covering 3.3.1 Detection and identification of plant diseases and 3.3.2 Plant defence responses. Each one has a worked solution and a mark scheme showing where the marks go.