Table of ContentsCellular Respiration in YeastObjectiveHypothesisAnalysis QuestionsConclusionCellular Respiration in YeastObjectiveThe purpose of this experiment was to teach students the effects of different variables on cellular respiration and also to give students the opportunity to design their own experiment. Say no to plagiarism. Get a tailor-made essay on “Why violent video games should not be banned”?Get the original essayHypothesisIf the concentration of sugar in the water increases, the yeast will have a faster respiratory rate and therefore produce more carbon dioxide .Procedure1. Label three tubes A, B, and C.2. Place 0.5 teaspoon of sugar in test tube A.3. Put 0.75 teaspoon of sugar into test tube B.4. Put 1 teaspoon of sugar in test tube C.5. Add 2 ml of water to each test tube and stir gently until the sugar is completely dissolved.6. Put 0.5 teaspoons of yeast in each test tube.7. Place a balloon on top of each test tube and immediately begin timing.8. Every four minutes, measure the circumference of each balloon and record the measurement.a. If the ball cannot stand up on its own, do not measure the circumference.9. Continue measuring the balloons until five intervals have elapsed.Analysis Questions1. What do you think would happen to the reaction rate if you increased the temperature of the water?a. I think the reaction speed would be faster, because when baking with yeast the instructions always say to let the yeast activate in warm water.b. Are there other factors that could change the rate?i. Some other factors that can change the reaction rate are the pH level, age of the yeast, quality of the sugar, and surface area of ​​the yeast cluster.2. What would happen in the experiment if the yeast used lactic fermentation instead of alcoholic fermentation?a. If the yeast used lactic fermentation instead of alcoholic fermentation, none of the flasks would fill because lactic fermentation does not produce carbon dioxide.3. Were there any sources of error in your experiment? a. Our main source of error was that we had not completely dissolved the sugar in the water in test tubes B and C, which meant that the sugar mostly sank to the bottom of the test tube and the water remained at the bottom. -above the sugar.b. How would they affect the outcome of your experiment?i. Because yeast floats in water, after adding it to the test tubes and swirling them, the yeast was still separated from the sugar by the water in test tubes B and C and therefore could not very carry out the alcoholic fermentation correctly. Test tube A was the only test tube in which the yeast produced a significant amount of carbon dioxide, meaning we did not have enough data to find a trend between the different sugar concentrations. Keep in mind: this is just a sample. Get a custom template article now from our expert writers.Get a custom essayConclusionThe main idea of ​​this experiment was to see if the rate of respiration of yeast was affected by the amount of sugar available. We were unable to find a trend due to inconclusive results, which were the result of a laboratory error. Test tube A produced enough carbon dioxide to fill a balloon to a diameter of 5 cm, but the other two test tubes did not produce a measurable amount of carbon dioxide. Thus, our reports can neither support nor refute our hypothesis because there is no..