perform and write an activity to show that plants lose water through leaves during transpiration.

Asked by manya.bhardwaj.01 | 29th Jun, 2017, 04:37: PM

Expert Answer:

Aim: To show that plants lose water through their leaves during transpiration.

Procedure:

  • Take a medium-sized well-watered plant.
  • Cover the plant with a transparent polythene bag completely and tie its mouth around the base of the stem.
  • Take a similar empty polythene bag and tie its mouth. This polythene bag will act as the control for the experiment.
  • Keep the plant as well as the empty polythene bag in the sunlight for 1–2 hours.

Observation:

  • Drops of water appear on the inner side of the polythene bag.
  • No such drops appear in the empty polythene bag.

Inference:

  • The plant gives off water vapour through its leaves which saturates and condenses on the inner surface of the polythene bag.

Answered by Sheetal Kolte | 29th Jun, 2017, 05:41: PM