Plant Physical Defences
Plants have physical barriers that act as a first line of defence against microorganisms and herbivores.
How does the cellulose cell wall protect a plant?
What is Plant Physical Defences?
"Physical defences in plants are structural barriers that prevent pathogens from entering and infecting the plant."
Which is a physical defence used by many plants against pathogens?
How does a waxy cuticle help protect a plant?
Why are layers of dead cells on leaves useful as a defence?
Barriers to Entry
Cellulose cell walls provide a physical barrier to pathogens.
Tough waxy cuticle on leaves prevents entry.
Layers of dead cells (bark) fall off, taking pathogens with them.
Bark on trees is like skin; it's a protective layer that can be shed.
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