Waterweed Photosynthesis Simulation lab 2017-2018

Waterweed Photosynthesis Simulation Name __________________________ WTahtiesriws meeoddifPiehd ofrtoomsyanptohsteinsgisatShittmp:u//lwawtiwo.nbiologycoNrnaemr.ceom______________________

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Light Color

Red Blue Green Colorless

** Based on the data, what color of light

Number of Bubbles

results in the fastest rate of

(Light = 6.0 | CO2 = 6.0) photosynthesis?

______________________

Effect of varying Light Level on Photosynthesis Use the data table you completed above to construct a bar graph for this data.

Set the simulator to colorless light and CO2 level to 6.0. Make adjustments to the level of light to complete the data table.

Light Level

0 2.0 4.0 6.0 8.0 10.0

Number of Bubbles (Light = Colorless | CO2 = 6.0 )

**** Based on the data, what light level results in the fastest rate of photosynthesis?

______________

1

Green Colorless

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Light Level

0 2.0 4.0 6.0 8.0 10.0

Number of Bubbles (Light = Colorless | CO2 = 6.0 )

**** Based on the data, what light level results in the fastest rate of photosynthesis?

______________

1

Use the data table you completed above to construct a line graph for this data.

Effect of varying CO2 Level on Photosynthesis 3. Set the simulator to colorless light and the light level to 6.0. Make adjustments to the level of light to complete the data table.

Use the data table you completed above to construct a line graph for this data.

Conclusion Questions 1. State the relationship between the light level and production of gas by waterweed.

2. State the relationship between the carbon dioxide level and production of gas by waterweed.

3. Based on the simulation experiments, three factors that can affect the rate of photosynthesis in a plant were studied? Can you think of any other factors that might affect this rate?

4. Write the complete chemical equation for photosynthesis. Do not forget to include your coefficients.

5. What are the bubbles you are measuring in this lab? Why do the bubbles tell you how fast photosynthesis is occurring? (Think about the light dependent and independent reactions)

6. Why is it important that you keep two variables constant (such as light level and color) while you're testing how a third variable (ex. CO2 Level) affects photosynthesis?

7. What settings could you put the simulator on to get the MAXIMUM rate of photosynthesis?

8. Why does the color of light affect the rate of photosynthesis? Explain your answer in a short paragraph (4-6 sentences) using evidence from the lab and specific information you know about chlorophyll, chloroplasts, colors of light, wavelengths of light.

9. Where does photosynthesis occur inside of the plant cell? Discuss the anatomy of this structure by naming the parts that are important in determining if photosynthesis will occur. Use specific examples from the light dependent and light independent reactions in your answer.

10. Knowing that photosynthesis involves both light dependent and light independent reactions, explain what happens in each AND where each reaction specifically occurs.

LIGHT DEPENDENT:

LIGHT INDEPENDENT:

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