Transpiration (OCR GCSE Biology A, Combined (Gateway Science Suite)): Quizzes
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Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is transpiration?
What is transpiration?
Water absorption, transport & evaporation
How do root hair cells absorb water from the soil?
How do root hair cells absorb water from the soil?
By osmosis
Which vessels transport water from the roots to the leaves?
Which vessels transport water from the roots to the leaves?
Xylem vessels
From which cells does water evaporate in the leaves?
From which cells does water evaporate in the leaves?
Spongy mesophyll cells
Through which openings does water vapour leave the leaf?
Through which openings does water vapour leave the leaf?
Stomata
What does water loss from stomata create in the leaf?
What does water loss from stomata create in the leaf?
Negative pressure
Why does increased light raise transpiration rate?
Why does increased light raise transpiration rate?
Stomata open wider for more CO2
How does higher temperature affect transpiration?
How does higher temperature affect transpiration?
Increases rate by faster evaporation
Why does high humidity lower transpiration rate?
Why does high humidity lower transpiration rate?
Reduces concentration gradient
How does increased wind speed affect transpiration?
How does increased wind speed affect transpiration?
Removes humid air, increases rate
What is turgor pressure?
What is turgor pressure?
Cell contents pressure on cell wall
What does a potometer measure?
What does a potometer measure?
Transpiration rate