Describe how a thick waxy cuticle reduces water loss
The thick waxy cuticle reduces evaporation as it acts as a barrier. The shiny surface also reflects heat and so lowers temperatures reducing water loss
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Describe how having rolled leaves reduces water loss
Less epidermis is exposed to the external atmosphere so surface area from which transpiration can occur is reduced. The rolled leaves also trap air which becomes saturated and so reduces the water vapour potential gradient across the leaf
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Describe how pits containing stomata reduces water loss
Sunken pits trap air which becomes saturated with water vapour this means that around the stomata there is a reduced water vapour potential gradient and so less water loss occurs due to transpiration
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Describe how having dense spongy mesophyll reduces water loss
Reduces the surface area so that is exposed to the air inside the leaf. so less water will evaporate into the leaf air spaces and so this reduces the rate of water loss
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What are xerophytes?
Plants which have been adapted to survive in dry environmental conditions by reducing water loss
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What would happen to the plants if they did not have these adaptations?
Non-woody plants would wilt and die. Woody plants would loose their leaves first then die.
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Other cards in this set
Card 2
Front
Describe how a thick waxy cuticle reduces water loss
Back
The thick waxy cuticle reduces evaporation as it acts as a barrier. The shiny surface also reflects heat and so lowers temperatures reducing water loss
Card 3
Front
Describe how having rolled leaves reduces water loss
Back
Card 4
Front
Describe how pits containing stomata reduces water loss
Back
Card 5
Front
Describe how having dense spongy mesophyll reduces water loss
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