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An Experiment to Show the Rate of Respiration In a Locust.
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An Experiment to Show the Rate of Respiration In a Locust Aim The rate of respiration in an organism can be determined either by measuring the volume of oxygen taken in, or the volume of carbon dioxide produced. The aim of this experiment was to determine the rate of respiration of a locust using an instrument called a respirometer. Method * The respirometer consisted of 2 equal chambers- an experimental one containing the respiring organism, and a control one, containing an equal volume of non-respiring material (in this case a marble). * The 2 chambers were connected by a U-shaped manometer tube that had a diameter of 1mm, containing a coloured fluid (manometer fluid)- this differential respirometer ensured that any fluctuations in temperature or pressure affected both sides of the manometer equally and so they cancel each other out. * An equal volume of some soda lime (a carbon dioxide absorbing material) was added to each...
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