We started by observing our test tubes ( today is Day 4). Mr.Finley drew four graphs on the board and asked us which one we thinks best represents how respiration works: A,B,C, or D. Graphs C,A, and D show change because overtime, the results showed a change. B, on the other hand, will always stay constant because it's a straight line. The way to see who's on the right track is to test our predictions.
We added 1 ml of yeast, and 1 ml of sugar into three test tubes. Our dependent variable is temperature. We want to find out if the temperature of the test tube will affect cellular respiration. Mr.Finley topped each test tube with a balloon, so we'll know which test tube has the most respiration going on. We poured room temperature, ice, and hot water into a beaker and put it on top of a burner. The ice water is blue, hot water is red, and the room temperature water is yellow. He shook up the first test tube and put it into the room temperature water. Our experiment is to be continued.......
PS. Lab Reports are due Monday!!!!
CC
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