Skip to content

Course home

x
3.3.2 Plant defence responses
x

Three Lines of Plant Defence

Three Lines of Plant Defence

Diagram comparing physical barriers against pathogens, chemical defences against bacteria and herbivores, and mechanical adaptations that deter herbivores

Plants cannot move away from threats, so they use physical, chemical and mechanical defences. These protect plants against pathogens and herbivores.

3.3.2 Plant defence responses Lesson

  1. GCSE
  2. /Biology
  3. /3.3.2 Plant defence responses

Step-by-step lessons on AQA GCSE Biology 3.3.2 Plant defence responses. Each one builds up to exam-style questions. Start with the foundational topics and build up to the higher-tier material.

Lessons