The Effect Of Intensity And Quality of Light on the Rate of Photosynthesis


  • Take some fresh Hydrilla plants and insert their cut ends in¬side the lower end of the glass tube.
  • Fill the flask with distilled water and add a few ml of 0.1% KHCO3 soln.
  • Fill the cylindrical cup of the glass tube with dist. water and insert a graduated water-filled glass tube over the jet.
  • Clamp the whole set with a stand and place under bright sun¬light.
  • Record the release of air bubbles produced by the green plants, passing through the jet per 5 min, when the evolution of bubbles become steady.