Plant Defence Responses

• What do the layers of dead cells around plant stems do?

  They stop pathogens from entering.
• How do chemical defenses in plants deter predators?

  By using poisons and antibacterial compounds.
• Name a plant that produces poisons to deter herbivores.

  Foxglove
• What is the role of antibacterial compounds in plants?

  They kill bacteria.
• What mechanical defense do thorns and hairs provide to plants?

  They make it difficult and painful for animals to eat them.
• How do some leaves respond when touched?

  They droop or curl to move insects off their leaves.
• What is mimicry in plants?

  It is when plants trick animals into avoiding them.
• How do some plants appear to look like unhealthy plants?

  By drooping.
• Why do some plants have patterns that look like butterfly eggs?

  To prevent butterflies from laying their eggs there.
• What are the physical defenses plants have against pathogens?

  • Tough waxy cuticle
  • Cellulose cell walls