CPAC 9: Investigating factors affecting the rate of aerobic respiration using a respirometer12/10/2016 Apparatus:
Safety: Soda lime is highly corrosive so eye protection should be worn at all times and contact with the soda lime should be avoided. A spatula should be used to handle it. After handling the maggots you should wash your hand thoroughly. Procedure:
Results: As we can see from these results, overall as the temperature increased, so did the rate of respiration measured by the distance the indicator moved along the glass tube in a minute (measured in mm). However the optimum temperature seemed to be 40 degrees Celsius and after the point the rate of respiration began to decrease again until at 50 degrees Celsius it was at 0.
The rate of respiration actually reached 0 at 55 degrees Celsius because the temperature turned out to be too hot for the maggots and they perished under the conditions which was very unethical and for future experiments lower temperatures needs to be used to ensure the protection of the organisms.
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