Plant defences, and identifying plant diseases
I can describe physical, chemical and mechanical plant defences against pathogens and pests, and can describe ways in which plant diseases can be identified.
Plant defences, and identifying plant diseases
I can describe physical, chemical and mechanical plant defences against pathogens and pests, and can describe ways in which plant diseases can be identified.
Lesson details
Key learning points
- Plants can be infected by pathogens such as viruses, bacteria and fungi that cause diseases.
- Pests, including insects, can damage plants by feeding on them, and can spread pathogens that cause diseases.
- Plants have physical, chemical and mechanical defences against pathogens.
- Examples of physical, chemical and mechanical defences in plants.
- Ways to identify plant diseases and the pathogens that cause them.
Common misconception
Plants have no defence against pests or pathogens.
Plants have physical, chemical and mechanical defences against pathogens.
Keywords
Waxy cuticle - Waterproof coating on the surface of a leaf.
Cell wall - Structure made of cellulose that surrounds plant cells.
Antimicrobial - A substance that kills microorganisms or stops their growth.
Microscopy - Use of a microscope to observe a specimen such as a microorganism.
Antibody - Protein produced by white blood cells against a specific pathogen.
Equipment
None required.
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Video
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Starter quiz
6 Questions
cell wall
cell membrane
chloroplast
vacuole
Exit quiz
6 Questions
virus
bacteria
fungus
