6.5 Limiting Water Loss

Question 1

How do insects limit water loss? (3)

Answer 1

• smaller SA:V
• waterproof coverings made of chitin
• spiracles opening/closing

Question 2

How are leaves adapted to reduce water loss? (5)

Answer 2

• thick cuticle
• rolling up of leaves, traps water
• hairy leaves, traps moisture
• stomata in pits or grooves, traps water
• reduced SA:V, slower rates of diffusion

Question 3

What are plants that are adapted to limiting water loss through transpiration called?

Answer 3

Xerophytes