Transpiration (AQA 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 moving from roots to leaves & evaporating
How does water enter a plant's roots?
How does water enter a plant's roots?
By osmosis through root hair cells
Which structure carries water up the stem in plants?
Which structure carries water up the stem in plants?
Xylem
Through which structures does water vapour escape from leaves?
Through which structures does water vapour escape from leaves?
Stomata
What else does the transpiration stream carry besides water?
What else does the transpiration stream carry besides water?
Dissolved mineral ions
What surrounds each stoma?
What surrounds each stoma?
Two guard cells
What happens when guard cells take in water?
What happens when guard cells take in water?
They become swollen & curved, opening stoma
What happens when guard cells lose water?
What happens when guard cells lose water?
They become limp & straight, closing stoma
Why are most stomata on the lower surface of leaves?
Why are most stomata on the lower surface of leaves?
Less sunlight there reduces water loss
In the leaf experiment, which covering resulted in 4% mass loss?
In the leaf experiment, which covering resulted in 4% mass loss?
Lower surface only covered