Pondweed Simulation
Pondweed or Elodia is an aquatic plant typically used to measure the rate of photosynthesis. Oxygen bubbles are given off by the plant in response to photosynthesis. Counting the bubbles helps determine the rate of photosynthesis.
It is very difficult for us to obtain this plant in Kingdom. Therefore you will conduct this practical on line. Using the interactive activity and complete this Pondweed Practical. Reproduce the tables in your expercise book.
Pondweed Simulation
Introduction: In this simulation, you will be looking at the production of oxygen as a plant photosynthesizes. This procedure can be accomplished by placing elodea plants in water with baking soda to provide carbon. The plant can
then be exposed to varying intensities and colors of light. Oxygen is measured in the number of bubbles produced by the plant. This simulator addresses three factors that influence the rate of photosynthesis. Carbon dioxide availability,
light intensity, and light color can all be adjusted in the simulator to determine how each of the factors affects the rate of photosynthsis
PLEASE NOTE: YOU MUST HAVE ADOBE SHOCKWAVE INSTALLED TO COMPLETE THE
ASSIGNMENT. THERE WILL BE NO EXCUSES TO NOT COMPLETING THE ASSIGNMENT.
Site: http://www.saddleworth.oldham.sch.uk/science/simulations/waterweed.htm
Affect of Light Color on the Rate of Photosynthesis
Set the simulator to 6.0 Light Level, and 6.0 CO2 Level. Adjust the colors to complete the table
It is very difficult for us to obtain this plant in Kingdom. Therefore you will conduct this practical on line. Using the interactive activity and complete this Pondweed Practical. Reproduce the tables in your expercise book.
Pondweed Simulation
Introduction: In this simulation, you will be looking at the production of oxygen as a plant photosynthesizes. This procedure can be accomplished by placing elodea plants in water with baking soda to provide carbon. The plant can
then be exposed to varying intensities and colors of light. Oxygen is measured in the number of bubbles produced by the plant. This simulator addresses three factors that influence the rate of photosynthesis. Carbon dioxide availability,
light intensity, and light color can all be adjusted in the simulator to determine how each of the factors affects the rate of photosynthsis
PLEASE NOTE: YOU MUST HAVE ADOBE SHOCKWAVE INSTALLED TO COMPLETE THE
ASSIGNMENT. THERE WILL BE NO EXCUSES TO NOT COMPLETING THE ASSIGNMENT.
Site: http://www.saddleworth.oldham.sch.uk/science/simulations/waterweed.htm
Affect of Light Color on the Rate of Photosynthesis
Set the simulator to 6.0 Light Level, and 6.0 CO2 Level. Adjust the colors to complete the table
Affect of Light Level on Photosynthesis
Set the simulator to colorless light and CO2 level to 6.0. Make adjustments to the level of light to complete the data table.
Set the simulator to colorless light and CO2 level to 6.0. Make adjustments to the level of light to complete the data table.
Affect of CO2 Level on Photosynthesis
Develop an experiment to test how the level of CO2 affects the rate of photosynthesis. Construct a data table in the space below that shows the data you collected. Make sure to include information such as the color of light,
light intensity, level of CO2 and the amount of bubbles produced. (Use the previous experiments as a guide)
Develop an experiment to test how the level of CO2 affects the rate of photosynthesis. Construct a data table in the space below that shows the data you collected. Make sure to include information such as the color of light,
light intensity, level of CO2 and the amount of bubbles produced. (Use the previous experiments as a guide)
ANALYSIS
4. Based on the simulation experiments, what factors can affect the rate of photosynthesis in a plant? How do you know?
5. Write the equation for photosynthesis (use your book or online resources if you don't know it).
6. What are the bubbles you are measuring in this lab? Why do the bubbles tell you how fast photosynthesis is occurring?
7. Why is it important that you keep two variables constant (such as light level and color) while you're testing how a third variable (CO2 Level) affects photosynthesis?
8. What settings can you put the simulator on to get the MAXIMUM rate of photosynthesis?
Complete the assignment on A4 paper. Submit below. Assignment due next Sunday
4. Based on the simulation experiments, what factors can affect the rate of photosynthesis in a plant? How do you know?
5. Write the equation for photosynthesis (use your book or online resources if you don't know it).
6. What are the bubbles you are measuring in this lab? Why do the bubbles tell you how fast photosynthesis is occurring?
7. Why is it important that you keep two variables constant (such as light level and color) while you're testing how a third variable (CO2 Level) affects photosynthesis?
8. What settings can you put the simulator on to get the MAXIMUM rate of photosynthesis?
Complete the assignment on A4 paper. Submit below. Assignment due next Sunday
