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Investigation Into the affect of Temperature on the Rate of Carbon Dioxide Production in Yeast.
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Investigation Into the affect of Temperature on the Rate of Carbon Dioxide Production in Yeast Background Knowledge: All organisms respire, and they all produce carbon dioxide, whether it is anaerobic or aerobic respiration. For yeast, respiration is as follows: Aerobic: C6H12O6 + 6O2--> 6H2O + 6CO2 + ATP Anearobic: C6H12O6 --> 2CO2 + 2C2H5OH For respiration to occur, there must be a source of food for the organism. In this case, glucose solution was used. The yeast then creates enzymes, which break the glucose up and act as catalysts for respiration. Therefore, the temperature should affect the rate of carbon dioxide because with the increase of heat energy, there is more energy for reactions. However, after a certain temperature, the enzymes will be denatured, and will no longer break down the glucose so no respiration will take place. Although this project will look at the carbon dioxide production in yeast, it can also...
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