Wednesday, December 21, 2011

Enzyme Lab

In our enzyme lab, we measured the pressure of a mixture of hydrogen peroxide, water (h20) and yeast. The yeast was mixed in with the water and hydrogen peroxide because it is not only an enzyme, but it is also known as a peroxidase. A peroxidase is an enzyme that basically speeds up the reaction time of the process. That's what an enzyme is, something that speeds up the process of a reaction. We also used a pressure tester plugged into the mac book on one side, and a rubber cork in the test tube to see what the pressure looked like as it was increasing. The more drops of yeast we would mix with the water and peroxide, the more the reaction and pressure would increase. If you put enough drops of yeast in the tube, you could actually get such a rapid increase, the pressure cork would actually pop off!! Looking back at the lab, you can see we tested three different factors. We tested the enzyme concentrations, different temperatures of the tubes, and we also tested the ph levels. If you decrease the temperature of the tubes, the enzyme activity will decrease. If you heat up the tubes, then you can see the rapid increase of the temperatures.

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