Investigating transpiration (AQA GCSE Biology Combined Science): Flashcards
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10 cards from this deck
Equipment that measures water uptake in plants
Equipment that measures water uptake in plants
Potometer
Effect of light intensity on transpiration rate
Effect of light intensity on transpiration rate
More light = faster transpiration
Why light increases transpiration
Why light increases transpiration
Stomata open wider for gas exchange
Effect of temperature on transpiration rate
Effect of temperature on transpiration rate
Higher temperature = faster transpiration
Why temperature increases transpiration
Why temperature increases transpiration
Heat speeds up diffusion of water molecules
Effect of air movement (wind) on transpiration
Effect of air movement (wind) on transpiration
More air movement = faster transpiration
Why air movement increases transpiration
Why air movement increases transpiration
Increases concentration gradient around leaves
Formula for transpiration rate from potometer
Formula for transpiration rate from potometer
Rate =
Effect of plastic bag on transpiration
Effect of plastic bag on transpiration
Reduces/slows down transpiration
Why plastic bag reduces transpiration
Why plastic bag reduces transpiration
Increases humidity, reduces concentration gradient