Transpiration (Edexcel GCSE Biology Combined Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is transpiration?
What is transpiration?
Water absorbed by roots and evaporates from leaves
How does water enter the plant from the soil?
How does water enter the plant from the soil?
By osmosis through root hair cells
Which vessels transport water from the roots to the leaves?
Which vessels transport water from the roots to the leaves?
Xylem vessels
Through which structures does water vapour leave the leaf?
Through which structures does water vapour leave the leaf?
Stomata
Why does increased light lead to higher transpiration rates?
Why does increased light lead to higher transpiration rates?
Stomata open wider to allow CO2 for photosynthesis
How do higher temperatures affect transpiration?
How do higher temperatures affect transpiration?
Increase it by making water evaporate faster
Why does high humidity lower the rate of transpiration?
Why does high humidity lower the rate of transpiration?
Air is saturated, reducing concentration gradient
How does increased wind speed affect transpiration?
How does increased wind speed affect transpiration?
Increases it by removing humid air around the leaf
How does transpiration help cool the plant?
How does transpiration help cool the plant?
Water evaporation from leaves cools the plant
What does a potometer measure?
What does a potometer measure?
Rate of transpiration via water uptake