Solved by a verified expert:Experiment 2: Aerobic Respiration in BeansWe will evaluate respiration in beans by comparing carbon dioxide production between germinated and nongerminated beans. As shown in the balanced equation for cellular respiration, one of the byproducts is CO2 (carbon dioxide):C6H12O6 + 6 H2O + 6 O2 → energy + 6 CO2 + 12 H2OWe will use a carbon dioxide indicator ( bromothymol blue) to show oxygen is being consumed and carbon dioxide is being released by the beans. Bromothymol blue is an indicator that turns yellow in acidic conditions, green in neutral conditions, and blue in basic conditions. When carbon dioxide dissolves in water, carbonic acid is formed by the reaction:H2O + CO2 → H2CO3Q(4) Explain your answer.What are the controls in this experiment, and what variables do they eliminate? Why is it important to have a control for this experiment?