plant defence responses
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4 Terms
1
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what are the physical defences of a plant? (x3)
tough waxy cuticle stops entry to leaves
cellulose form a barrier to cells
layers of dead cells around stems which fall off with pathogens
cellulose form a barrier to cells
layers of dead cells around stems which fall off with pathogens
2
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what are the chemical defences of a plant? (x2)
poisons
antibacterial compounds kill bacteria
antibacterial compounds kill bacteria
3
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what are the mechanical defences of a plant? (x3)
thorns and hairs to make it difficult to eat
some leaves droop / curl when touched
mimicry
some leaves droop / curl when touched
mimicry
4
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how is mimicry used to trick animals? (x3)
droop to look unhealthy
patterns that look like butterfly eggs so butterflies don’t lay eggs there to avoid competition
some have pebble or stone appearance to avoid predators
patterns that look like butterfly eggs so butterflies don’t lay eggs there to avoid competition
some have pebble or stone appearance to avoid predators