Lab results and discussion

Graphs of data

I have included a few, but not all, of the graphs we used for our lab report. Here are your choices. One each screen you will find a description of the graph.

View the graph of how the mass of the feed solution flask varied over time for both the glucose and Gatorade solutions.
View the graph of how the nutrient solution feed ratechanged over time for both solutions.
View a graph of how much CO2 was being produced every minute for both solutions.

Conclusion

Having viewed the above graphs, you should have gotten the idea that the yeast cells used up the Gatorade-based feed solution before the glucose-based feed solution. You should have also realized that using glucose produced more ethanol than using Gatorade drink powder.

The question is why. Do you have any idea? (Hint: a clue can be found in the description of the lab!)

After you've thought about it, click here to go to the explanation of why glucose worked better.

Click here to return to table of contents.

Written by Kurt M. Fritzsche (fritzk@rpi.edu) , 7-December-1995.
This page was created with the Hot Dog Pro Web Page Editor
Last update: 7 December 1995