The Breakdown

Mark Broeffle

10/13/12

Our group consisted of Ali, JB, and myself overall we did a fair job in our lab, but we could have stayed more focused. The question we were tasked with was. Is the enzyme that breaks down hydrogen peroxide in to water and oxygen found in both plants and animals? To tackle the question our group took three items a potato, an orange, and beef liver. With our test subjects, we cut them up into 1 gram pieces and then filled the test tube with 10 grams of hydrogen peroxide. Our results showed that the enzyme was found in both, but not in all items. With the liver it bubbled at such a large rate that it overflowed the test tube revealing that the enzyme was present. The potato did react to the hydrogen peroxide showing that the plants also contain the enzyme. The orange on the other side of the spectrum did not react which lead us to the conclusion that the enzyme is found in both plants and animals but is not found in all organisms. Our group over all was fairly well behaved. Our one big issue was that we ended up talking a lot about different things then just biology. Jb was like our group leader making sure things got done especially with the power point that we presented. Ali also worked very hard, but he does like to talk to Xavier and Luis. Our group managed the task and finished on time. I am without major concern about how our group managed our time or acted well preforming.