Course Content
TRANSPORT IN PLANTS AND ANIMALS
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EXCRETION AND HOMEOSTASIS
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Biology Form 2
About Lesson

Potometer

The instrument used to measure the rate of transpiration.

What does the potometer measure?     

  • Transpiration rate;

The precautions that should be taken when setting the experiment

  • Cut the shoot under water to prevent entry of air bubble in the xylem (vessel);
  • The set-up should be airtight; so that the only way the apparatus can lose water is by the plant transpiring.

 

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