Assignment 2
 

Assignment 2

Load the LeafLab. Begin by creating a third plot of both your corn and tomato data from assignment 1. To do this, return to the Plot Data view. Name this plot "Plot 3" by entering a "3" in the Plot box. Select the data for tomato and plot this data.

Change the value in the Data for Curve box to "2" (Note: This box indicates the number of different data curves that you will plot on the same graph). Select the corn data. Choose a different plotting symbol and/or color for the corn data, then plot the corn data on the same graph with the tomato data.

Click on the Plot 3 tab to enter the parameter values that you fit previously to tomato and corn to develop best-fit curves for the data. Answer the following questions.
1 .       Are there any differences between photosynthetic rate in corn compared with tomatoes? If there are differences, what are they?  



2 .       How do C3 and C4 plants differ in their capacity for photosynthesis?  



3 .       Are there differences in photosynthetic saturation in corn compared with tomatoes? What are they? Provide possible explanations for any differences that you observed.  








©2005 Pearson Education, Inc., publishing as Benjamin Cummings