Bio Lab 3 answers.docx - Exercise 3 answers Data Table 1...

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Exercise 3 answers Data Table 1: Catalase Enzyme Concentration 4 pts 0% 25% 50% 75% 100% Trial 1 Time 180 sec. Should decrease -------------> Trial 2 Time 180 sec. Avg. Time 180 sec. Rate ( d / t ) 0 cm/s Should increase -------------> Note: d=2.5 cm (= height of the hydrogen peroxide solution in the cup). Data Table 2: Effect of Temperature on Catalase Enzyme 4 pts 10° below_ 12°C _ Rm Temp._ 22°C 10° above_ 32°C 20° above_ 42°C 30° above _ 52°C Time 92 sec. 72 sec. 70 sec. 159 sec. 180 sec. Rate ( d / t ) 0.025 cm/s 0.032 cm/s 0.033 cm/s 0.014 cm/s 0 cm/sec. Note: your data table values don’t have to match the answer key, but should be reasonable. 1. Why are enzymes so important for sustaining life? 1.5 pts Enzymes are catalysts that help chemical reactions occur fast enough to sustain life. 2. Catalase produced by the yeast cells in this experiment caused hydrogen peroxide to break down. What are the two products of this reaction? Which of those products provided visible evidence that the hydrogen peroxide is breaking down? 3 pts
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Water and oxygen gas. The oxygen gas bubbles provided visible evidence that hydrogen peroxide was
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