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Demonstrate the phenomenon of transpiration.
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Demonstrate the phenomenon of transpiration.

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Transpiration is the evaporation of water from the surface of leaves through stomata. The phenomenon of transpiration can be explained by Bell jar experiment.
REQUIREMENTS:
  • Bell jar
  • Well watered potted plant
  • Rubber sheet
  • Glass plate
PROCEDURE:
  • Take the well watered potted plant and cover it with the rubber sheet. The aerial parts of the plant should be left uncovered.
  • Put the plant on the glass plate and cover with the bell jar.
  • Prepare a same setup but without a plant in the second bell jar.
  • Place the apparatus in sunlight for sometime.
OBSERVATIONS:
Water drops appear inside the walls of the bell jar containing potted plant whereas no water drops appear in the bell jar without a plant. This demonstrates that water is evaporated from the surface of leaves in presence of sunlight.
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Question Text
Demonstrate the phenomenon of transpiration.
TopicTransport in Plants
SubjectBiology
ClassClass 11
Answer TypeText solution:1
Upvotes111