Flashcards
3.3.4 - Transpiration
Flashcards do conjunto (6)
- 1Define transpiration.Transpiration is the loss of water vapour from the aterial parts of a plant, mostly through the stomata of the leaves.
- 2What membrane prevents loss of water?Waxy cuticle.
- 3Describe the transpiration process.Water enters spongy mesophyll and evaporates from it, then the water vapour diffuses out of the plant through stomata.
- 4Why is transpiration essential?Because water being lost draws water up through the plant, maintaing a transpiration stream.
- 5What are the environmental factors which effect transpiration rates?Light intensity
Wind speed
Temperature
Water availability
Humidity - 6What measures the rate of transpiration?A potometer.
Informações
- Descrição
- A level Biology (3.3 - Transport in Plants) FlashCards sobre 3.3.4 - Transpiration, criado por Joe Wells em 31-01-2017.
- Criado por
- Joe Wells
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