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Investigation on how pH affects free and immobilised catalase enzymes Hypothesis I hypothesis that as the ph of the solution that my enzymes are in (immobilised or free) moves away from neutral to more acidic or alkaline solutions that the amount of oxygen produced from the break down of hydrogen peroxide decreases. This can be explained by the research in which I stated how in acidic conditions enzymes are H+ acceptors and H+ donators in alkaline solutions this then breaks and destabilizes the ionic bonds denaturing the enzyme as it becomes unravelled. Also in my research I stated how the H+ ions would alter the globular shape of the protein distorting the active site. This distortion would affect the reaction rate as it would slow down due to the active site being distorted so it takes longer to break down the hydrogen peroxide and because more and more of the enzymes become...

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