plant adaptations to water availability-transport in plants

Question 1

xerophytes

Answer 1

• plants in dry habitats which have adapted to conserve water and live and reproduce in these areas
• where water is scarce

Question 2

5 ways of conserving water

Answer 2

• succulents, store water in the parenchyma tissue in their stems and roots
• thick waxy cuticle
• sunken stomata, reduces air movement which maintains a low conc gradient between water vapour
• reducing leaves
• reduced stomata
• hairy leaves, create areas of still air where water vapour builds up
• root adaptations

Question 3

hydrophytes

Answer 3

-plants that live in water/ in areas with excess water

Question 4

adaptations of hydrophytes

Answer 4

• very thin or no waxy cuticle
• many always open stomata on the upper surfaces
• wide flat leaves, capture as much light
• small roots
• aerenchyma, specialised tissue with air spaces for buoyancy