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GCSE Biology Paper 1 (9-1 Exams)

Transpiration Uptake Water Record Air Bubble Set Investigation

To investigate transpiration, measure water uptake using a potometer by noting the air bubble's movement under constant conditions.

Pour étudier la transpiration, on mesure l'absorption d'eau à l'aide d'un potomètre en notant le déplacement de la bulle d'air dans des conditions constantes.

Front How can we set up an investigation to investigate transpiration rate?
Back
  • We estimate the rate of transpiration by measuring the uptake of water by a plant
  • Use a potometer to measure the uptake of water
  • Record the starting position of the air bubble
  • Start a stopwatch, record the distance moved by the bubble per unit of time
  • Keep conditions constant throughout the experiment (e.g. temperature, air humidity)

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