PLEASE HELP
The rate of photosynthesis can be measured as the volume of oxygen released by a
plant per minute. The number of bubbles of gas released per minute from waterweed is
counted.
a. The gas collected in this experiment is not pure oxygen. Suggest a reason for this.
b. The graphs below show the effect of light intensity on the rate of photosynthesis at
different carbon dioxide concentrations. Explain what the graphs show.