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Investigating the effect of temperature on yeast respiration.
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| Submitted: Wed Aug 27 2003
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Investigating the effect of temperature on yeast respiration. Planning: With references to my theories I predict that when performing the experiment, the rate and speed of respiration of yeast will increase with temperature rise, up until a certain point around the area of 40ºC and onwards. After this point the enzyme site will become de-natured, meaning the substrate can no longer fit into the site and the protein bonds from the enzyme will begin to snap. My prediction is based upon two scientific theorems, "lock and key" hypothesis and the "collision" theory. The lock and key hypothesis, is where the substrate, the "key", fits into the active site on the enzyme, the "lock". Once this has occurred they then bind together and a reaction takes place, the active site on the enzyme unlocks the substrate to form one or more new substances leaving the enzyme ready to perform the binding process again....
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