Sunday, December 12, 2010

Enzyme Lab!!!! YAY!!! =P


Enzyme Lab
In this particular lab we were testing the reactions of enzymes. Filling a beaker tube with water and H2O2 is how we began this experiment. We then added drops of yeast to the experiment depending on the solution the yeast was to be added to. The reactions of the yeast result in pressure within the beaker. Then after we set up our lab stations, we connected a pressure sensor onto the beaker, kind of like a cork. We recorded the data using Logger Pro on our mac books to see and record the change and results of the pressure. We then measured the pressure within the beaker tube over a 3 minute time spanned and graphed the change in the rate.


In this first testing session my group and I tested the solution with different amounts of yeast added to the mixture. We soon realized that the most reaction occurred from the solution with 45 drops of yeast. The more yeast the greater the increase in pressure.

 
In this next experiment we tested how the same amount of drops of yeast would react with the different temperatures of the original solution. It reacted most at a warm 38 Degrees.

 

In this final experiment we tested the pressure within the solution with different amounts of pH. We observed that there was less reactions occurring when the pH level was at 7, but more at the pH level of 4.

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