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An Investigation to find out how Temperature Affects Respiration in Yeast. The investigation is intended to demonstrate the way that respiration in yeast is affected by temperature. I have read up about respiration in yeast in Letts GCSE Study Guide, B S Becket's Biology A modern introduction and Illustrated Biology, and Tortora Funke Case's Microbiology An Introduction. This is my summary: Respiration is the overall process of breathing, gas exchange in the lungs, and the breaking down of chemicals to provide energy in living things. Most organisms require a constant supply of oxygen to respire. During cellular respiration, the oxygen is combined with glucose that has been converted from food. Energy is released, together with the waste products of carbon dioxide and water. This method of respiration that uses oxygen is called aerobic respiration. The other method of respiration, when no oxygen is needed, is called anaerobic respiration. One such reaction is...

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