Investigating 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 does a potometer measure?
What does a potometer measure?
The rate of water uptake by a plant
Why does the air bubble move in a potometer?
Why does the air bubble move in a potometer?
Water is drawn up as plant loses water
What is the effect of light intensity on transpiration?
What is the effect of light intensity on transpiration?
More light = faster transpiration
Why does light increase the transpiration rate?
Why does light increase the transpiration rate?
Stomata open wider for gas exchange
What is the effect of temperature on transpiration?
What is the effect of temperature on transpiration?
Higher temp = faster transpiration
Why does temperature increase transpiration rate?
Why does temperature increase transpiration rate?
Heat speeds up diffusion of water
What is the effect of air movement on transpiration?
What is the effect of air movement on transpiration?
More air movement = faster rate
An air bubble moves 50mm in 5 minutes. What is the rate in mm per minute?
An air bubble moves 50mm in 5 minutes. What is the rate in mm per minute?
10 mm per minute
Why does a plastic bag around a plant reduce transpiration?
Why does a plastic bag around a plant reduce transpiration?
Humidity rises, reducing diffusion
What is a key assumption when using a potometer?
What is a key assumption when using a potometer?
Water uptake replaces transpiration loss