Wednesday, May 6, 2020

Cellular Respiration Through Alcoholic Fermentation

Title: Showing Cellular Respiration through Alcoholic Fermentation Abstract: The experiment was conducted to determine the impact different yeast amounts had on yeast fermentation. It was hypothesized that the more yeast added the more CO2 would be produced. The carbon dioxide production was measured in the fermentation of yeast with solution of no yeast in test tube 1, 1mL yeast in test tube 2, and 3mL of yeast in test tube 3 over a period of twenty minutes. All of the yeast amounts produced CO2, but test tube 3 was the most efficient of the three. Introduction: This lab was to investigate fermentation, a cellular process that transfers the energy in glucose bonds to ATP. The energy in ATP can then be used to perform cellular work.†¦show more content†¦Materials and Methods: We set up 3 fermentation set-ups, labeling them 1, 2, and 3. Then, filled a tub with hot water and inserted the end of the plastic tubing into one of the test tubes and submerged the collection tube and plastic tubing in the tub. After that, we mixed the fermentation solutions for the other tubes, (tube 1 got 4mL of water and 3mL of corn syrup, tube 2 got 3 mL of water, 1 mL of yeast and 3 mL corn syrup, tube 3 got 1 mL water, 3 mL yeast and 3 mL of corn syrup) . We then mixed each test tube and put the rubber stoppers in the fermentation tubes. Finally, we marked the water level on each collection tube with a wax pencil to use as the baseline. Then at 5 minute intervals we measured the distance from the baseline for 20 minutes. Tube | Minutes | | 0 | 5 | 10 | 15 | 20 | 25 | 30 | 1. (3 mL corn syrup) | .5 | .5 | .5 | .5 | .5 | .5 | .5 | 2. ( 3 mL corn syrup + 1 mL yeast) | 1.25 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 3. (3 mL corn syrup + 3 mL yeast) | .5 | .6 | .85 | 1.2 | 1.5 | 1.6 | 1.75 | Results: The different amounts of yeast used in fermentation had a significant impact on the amount of carbon dioxide produced. The tube with 3mL produced the most with a difference of 1.75mm, while the tube with 1mL produced a difference of 1.5mm of carbon dioxide. The control with no yeast resulted in 0mm difference of carbon dioxide and was the least productive ofShow MoreRelatedBio156 Lab 5 Essay977 Words   |  4 Pages56 Define the following terms: Cellular respiration (aerobic respiration) (2 points) Cellular respiration is the process by which cells get their energy in the form of ATP. There are two types of cellular respiration, aerobic and anaerobic. Aerobic respiration is more efficient and can be used in the presence of oxygen. 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