Physical and Chemical Defense Strategies

Question 1

Physical Defenses

Answer 1

• Waxy cuticle or thick bark
• Thorns or hairs
• Cellulose cell wall
• Stomates in Crypts
• Shedding of leaves

Question 2

Chemical Energy

Answer 2

• Produce resin.
• Secret phytoalexins e.g., terpenoids alkaloids
• Cyanogenic glycosides
• Producer an abscission zone or layer