What affects the activity of the enzyme catalase?
Catalase like all enzymes has an optimum temperature and pH at which it works best. This may differ according to the source of the catalase – you might predict that catalase from liver could have a higher optimum temperature than catalase from potato. You should be able to design experiments to find out the optimum for your catalase. You will find this area is covered in your text book. You will also know from reading text books that the concentration of enzyme and the concentration of substrate will affect the rate of the reaction. You should be able to find out HOW they affect the rate of the reaction. There may be inhibitors of catalase that would slow down the reaction. All these you could experiment with. You will find catalase covered in any A level biology text (and some chemistry texts too). I don’t think you need me to tell you all about hydrogen peroxide or all about liver and potatoes! Remember, if you attempt experiments, that hydrogen peroxide is a vigorous oxidising agent
