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Introduction This experiment was setup to investigate the effects of temperature on the rate of respiration of blowfly larvae. Background Knowledge The maggots involved in this investigation were blowflies at the larval stage of development, and they breathe through spiracles in the anterior and posterior segments. The respiratory tracts are not as developed at this stage, as the organism is not capable of flight, and so it respires less oxygen than an adult blowfly. They feed on dead organic matter. The respiration of an organism involves an intricate use of enzymes, and so some knowledge about them is necessary. Enzymes can be described as biological catalysts, which alter the rate of a chemical reaction without themselves being used up in the process; thus they can be used repeatedly. Enzymes do not themselves create reactions, just speed up reactions that would have otherwise happened naturally. Being proteins, enzymes have a three-dimensional structure. Within this structure, a section...

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