Enzyme Lab Reflection

In our Honors Biology class we were divided into groups of three and given a question we had to use an experiment created by our group to answer. My group consisted of me, Thomas, and Simi. Our question was, "Can enzymes be reused?" Knowing that pouring hydrogen peroxide on a potato would cause a chemical reaction we devised a plan. We put three of the same size cubed potato in two different test tubes. We then proceeded to pour a constant amount of 10 ml's into each tube. After sixty seconds had gone by we recorded our results by measuring the amount of foam in each tube. After doing this we emptied the tubes of all hydrogen peroxide, leaving the potato in the tubes. We then repeated the experiment three times and recorded the amount of foam for each test tube. The first time through the amount of foam in both tubes was around two centimeters. The second time the amount of foam greatly decreased to about 0.5 centimeters. The third and final time through the amount of foam was around 0.2 centimeters. Judging by our results, our group made the conclusion that while enzymes can be reused, they do not work as efficiently in producing a chemical reaction.