Plant Defence Responses (OCR GCSE Biology A (Gateway Science Suite)): Flashcards
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Practise the cards
13 cards from this deck
Three main types of plant defence
Three main types of plant defence
Physical, chemical, and mechanical
Function of waxy cuticle on leaves
Function of waxy cuticle on leaves
Barrier preventing pathogens from entering plant
Role of cellulose in plant cell walls
Role of cellulose in plant cell walls
Forms strong physical barrier against pathogen invasion
How layers of dead cells (bark) protect plants
How layers of dead cells (bark) protect plants
Shield against pathogens; fall off taking pathogens with them
Why plants produce poisons
Why plants produce poisons
To deter herbivores from eating them
Examples of plants that produce poisons
Examples of plants that produce poisons
Foxgloves, tobacco, deadly nightshade, yew
Function of antibacterial compounds in plants
Function of antibacterial compounds in plants
Kill bacteria and protect from infections
Examples of plants with antibacterial compounds
Examples of plants with antibacterial compounds
Mint and witch hazel
Purpose of thorns and hairs on plants
Purpose of thorns and hairs on plants
Make it difficult and painful for animals to consume
How drooping/curling leaves protect plants
How drooping/curling leaves protect plants
Dislodge insects or move plant away from harm
Mimicry: unhealthy appearance purpose
Mimicry: unhealthy appearance purpose
Discourages animals from eating them
Mimicry: butterfly egg pattern purpose
Mimicry: butterfly egg pattern purpose
Deters butterflies from laying eggs (avoids competition)
Mimicry: stone/pebble resemblance purpose
Mimicry: stone/pebble resemblance purpose
Makes plants less likely to be eaten by herbivores