1. What evidence do you have to prove cellular respiration occurred in beans? Explain.
2. If this experiment were conducted at 0°C, what difference would you see in the rate of respiration? Why?
3. What is the mechanism driving the bromothymol blue solution color change?
4. What are the controls in this experiment, and what variables do they eliminate? Why is it important to have a control for this experiment?
5. Would you expect to find CO2 in your breath? Why?
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