Investigating transpiration (AQA GCSE Biology): Flashcards
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14 cards from this deck
Transpiration definition
Transpiration definition
Plants losing water through their leaves
Equipment to measure transpiration rate
Equipment to measure transpiration rate
Potometer
What a potometer actually measures
What a potometer actually measures
Water uptake by the plant
How a potometer tracks water movement
How a potometer tracks water movement
Tracks an air bubble moving through a tube
Effect of increased light on transpiration
Effect of increased light on transpiration
Transpiration rate increases
Why light increases transpiration rate
Why light increases transpiration rate
Stomata open wider for photosynthesis & gas exchange
What stomata are
What stomata are
Tiny pores in leaves
Effect of increased temperature on transpiration
Effect of increased temperature on transpiration
Transpiration rate increases
Why temperature increases transpiration rate
Why temperature increases transpiration rate
Water molecules move faster, increasing diffusion rate
Effect of air movement (wind) on transpiration
Effect of air movement (wind) on transpiration
Transpiration rate increases
Why wind increases transpiration rate
Why wind increases transpiration rate
Creates steeper gradient & blows away water vapour
What is wilting
What is wilting
Plants lose water faster than they can absorb it
Weather conditions that increase wilting
Weather conditions that increase wilting
Hot, windy, and sunny weather