What are the bubbles that the elodea released made of?
What conclusions can you draw about the relationship between light intensity and the rate of photosynthesis? Be sure to refer to your data and justify your response.
What is another way that the intensity of the light could be tested? Describe your procedure.
Look at the photosynthesis reaction 6H2O + 6CO2 -➔ C6H12O6 + 6O2. What do you think might be other factors that can affect the rate of this reaction?
Make a hypothesis about your answer to question 4.
Design an experiment to test your hypothesis in question 5.

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Answer:The bubbles that are being produced are oxygen, which is the waste product of photosynthesis, in which the plant is producing. One conclusion that can be drawn from the relationship is that photosynthesis needs the light to occur. The light is the energy for photosynthesis to occur. If the light intensity raises then the rate of photosynthesis and oxygen also raises in response to the increase in light. Another way light intensity could be tested is the growth rate of the plant. You need to have two plants of the same species and size. One would have normal light intensity and the other would have a very increased level of intensity and then you see which one grows faster and bigger. I think one factor that would affect the procedure is glucose. The glucose is produced in amounts, during photosynthesis, that help the other reactions in photosynthesis. Without the sugar photosynthesis would no occur or it would have many defects. My hypothesis is that with an increase in light intensity the more sugar or glucose will be produced for photosynthesis. The way I will test this is have the same setup with two plants, but with the plant with the higher intensity I would measure the amount of sugar in the leaves of the plant to test the sugar level. I would then do the same thing with the regular plant and see which plant's sugar level is higher.

Explanation: these are answers to all you questions:)

The bubbles that are being formed are oxygen, which is a waste product of the plant's photosynthetic process. One conclusion that may be derived from the relationship is that photosynthesis cannot occur without the presence of light. The energy required for photosynthesis is provided by light.  

• In response to an increase in light intensity, the rate of photosynthesis and oxygen production increases.

• The plant's growth rate can also be used to determine light intensity. Two plants of the same kind and size are required.

• One would have standard light intensity, while the other would have a really high level of intensity, and you'd have to watch which one grew faster and bigger.

• Glucose, I believe, is one component that could alter the operation. During photosynthesis, glucose is created in quantities that aid the other photosynthesis reactions.  

  • Photosynthesis would not occur or would have many flaws if sugar was not present. My theory is that when the light intensity increases, more sugar or glucose is created for photosynthesis.

I'll test this by using the same setup with two plants, but measuring the quantity of sugar in the leaves of the plant with the greater intensity to determine the sugar level. Then I'd perform the same thing with the standard plant to check which one has the larger sugar level.

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