Deepak carried out an experiment to see the effect of increasing the amount of carbon dioxide available to a pondweed (a submerged plant) on the rate of photosynthesis carried out by the plant. The readings of the experiment are potted in the graph.Answer these questions. How do you think he measured the rate of photosynthesis? How do you think he increased the amount of carbon dioxide in the water? Since temperature causes a change in the rate of photosynthesis, he kept the temperature constant throughout the experiment. Suggest one more factor that he should have kept constant. Why did the graph increase initially? Why do you think it ultimately levelled off?

Deepak carried out an experiment to see the effect of increasing the a

1.	Deepak carried out an experiment to see the effect of increasing the amount of carbon dioxide available to a pondweed (a submerged plant) on the rate of photosynthesis carried out by the plant. The readings of the experiment are potted in the graph.Answer these questions. How do you think he measured the rate of photosynthesis? How do you think he increased the amount of carbon dioxide in the water? Since temperature causes a change in the rate of photosynthesis, he kept the temperature constant throughout the experiment. Suggest one more factor that he should have kept constant. Why did the graph increase initially? Why do you think it ultimately levelled off?
Answer» Deepak carried out an experiment to see the effect of increasing the amount of carbon dioxide available to a pondweed (a submerged plant) on the rate of photosynthesis carried out by the plant. The readings of the experiment are potted in the graph. Answer these questions. How do you think he measured the rate of photosynthesis? How do you think he increased the amount of carbon dioxide in the water? Since temperature causes a change in the rate of photosynthesis, he kept the temperature constant throughout the experiment. Suggest one more factor that he should have kept constant. Why did the graph increase initially? Why do you think it ultimately levelled off?