Project #31347 - rate of photosynthesis

Rate of Photosynthesis Lab Activity

During the process of photosynthesis, plans emit gas bubbles that can be used to measure the rate at which photosynthesis is occurring. Using the following virtual simulation created by the University of Reading in partnership with Syngenta, you will observe and measure the rate of photosynthesis of Elodea - a perennial aquatic plant.

Procedure

  1. Begin by reading the instructions for adjusting the light source.
  2. Create a data table to record the number of bubbles per minute and the total number of bubbles for a variety of light source distances.
  3. Adjust the light source so that it sits 160 mm from the test tube.
  4. Click the 'Start' button. It will take you to the next screen where you will see a close-up of the bubbles being produced during photosynthesis.
  5. Choose the 'Beats per Minute' (BPM) tab. The BPM counter will calculate the bubbles per minute.
  6. Click the 'Tap' button every time you see a bubble floating to the top of the test tube. Do this for a total of 3 minutes. Record the bubbles per minute in your data table.
  7. Choose the 'Counter' tab. This will give you the total number of bubbles formed.
  8. Click the '+' button for every bubble that floats to the top of the test tube. Do this for a total of 3 minutes. Record the total number of bubbles formed in your data table.
  9. Click the 'Back' button and adjust the light source so that it sits 190 mm from the test tube.
  10. Repeat steps 4 - 8. Record your data.
  11. Click the 'Back' button and adjust the light source so that it sits 120 mm from the test tube.
  12. Repeat steps 4 - 8. Record your data.

 

 

Rate of Photosynthesis Lab Assignment (THIS IS THE ASSIGNMENT PART TO BE COMPLETED)
    1. Display your results in the appropriate tabular and graphic formats.
 
  1. Communicate your results in an essay format as you would in the Discussion section of a lab report. Be sure to:
    • provide the basic science used in the lab
    • summarize your results, referring to table/graph and highlighting trends in data
    • use scientific concepts to explain results
    • suggest possible further tests

Note:

You are not required to write a complete lab report for this assignment.

Subject Science
Due By (Pacific Time) 05/20/2014 12:00 am
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