a) What process was being investigated?
(Rate of) transpirationb)
i) State two precautions that should be taken when setting up the experiment.
- Cut shoot under water
- Apply petroleum jelly to cork-glass/Bung-glass/Bung-shoot connection
- Open reservoir tap
ii) Give a reason for each precaution stated in b(i) above.
- To ensure no air enters leafy shoot/xylem
- To ensure the apparatus is air tight
- To remove air bubbles from tubes
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