Investigating the Effect of Light Intensity on Oxygen Production in an Aquatic Plant.

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Investigating the Effect of Light Intensity on Oxygen Production in an Aquatic Plant.

Analysis.

The results in the table below show the results of an experiment investigating the change of light intensity on the production of oxygen in an aquatic plant, Elodea.

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On the following page is the graph I drew of the above results. The graph was a curved graph, and I drew gradients in four sections to work out the rate of the reaction. Shown below is my working out of the gradients. The gradients show the rate of reaction in each section, between two distances.

m = gradient

m = change in y-values

      change in x-values

A) m =   4  (number of bubbles per min)

                13  (cm)

m = 0.31 bubbles per min/cm

B) m = ...

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