Plant adaptations to availability of water - xerophytic adaptations Flashcards
What is the purpose of the thick waxy cuticle?
To prevent further water loss
Why is there sunken stomata?
Reduces air movement, resulting in humid air, reduces transpiration
Why is there a reduced number of stomata?
Reduces water loss by transpiration, reduces gas exchange capabilities
Why are there less leaves?
Reduces water loss
What is the purpose of hairy leaves?
Creates humid air = less water loss
Why is there curled leaves?
Confines all stomata with humid air to reduce diffusion of water vapour
What is the purpose of widespread + shallow roots?
Able to absorb any available water before rain shower evaporates
Why is there long vertical roots?
Can access water far below surface
Why is parenchyma specialised in the stems + roots?
Water can be stored then used in droughts
Why is there leaf loss?
Losing leaves when water isnt available reduces water loss
