Plant diseases defences (Edexcel GCSE Biology): Flashcards
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Practise the cards
13 cards from this deck
Three types of plant defences
Three types of plant defences
Physical, chemical, and mechanical
Function of waxy cuticle on leaves
Function of waxy cuticle on leaves
Barrier preventing pathogen entry
Role of cellulose in plant cell walls
Role of cellulose in plant cell walls
Strong physical barrier vs pathogen invasion
How bark protects plants
How bark protects plants
Dead cell shield; falls off with pathogens
Why plants produce poisons
Why plants produce poisons
Deter herbivores from eating them
Function of plant antibacterial compounds
Function of plant antibacterial compounds
Kill bacteria & protect from infections
Plants that produce antibacterial compounds
Plants that produce antibacterial compounds
Mint and witch hazel
How thorns & hairs protect plants
How thorns & hairs protect plants
Make consumption difficult & painful for animals
Why leaves droop or curl when touched
Why leaves droop or curl when touched
Dislodge insects or move away from harm
Butterfly egg mimicry purpose
Butterfly egg mimicry purpose
Deter butterflies from laying eggs (avoid competition)
Stone/pebble mimicry in ice plant family
Stone/pebble mimicry in ice plant family
Less likely to be eaten by herbivores
Source & use of quinine
Source & use of quinine
Cinchona tree bark; main treatment for malaria
Source & use of aspirin
Source & use of aspirin
Willow tree bark/leaves; relieves pain & fever