The Effect of Enzyme Catalase in the Breakdown of Hydrogen Peroxide

1203 Words5 Pages
The Effect of Enzyme Catalase in the Breakdown of Hydrogen Peroxide Enzymes are a substance found in various things such as the liver, potatoes or yeast. They are used to break down chemicals; the enzyme we will be investigating is the enzyme Catalase. Enzymes are very easy to recognise because all enzymes end ‘ase’. Enzymes break down chemicals at an optimum temperature of 37.5o; this is because it is the temperature that homeostasis keeps the body at and most enzymes are found in the liver of a mammal’s body. Enzymes work using a simple ‘Lock and Key’ theory this is when to substances fit together perfectly because of their shape and size, the theory is demonstrated in the diagram below: Temperature is very important to productivity of the enzyme reactions. If the temperature is too high they move around too fast and there are less successful collisions; if the temperature is too low then they move around slowly and therefore collide less often which in turn creates less successful collisions. There are several factors which can affect how fast an enzyme reacts these are temperature, mass and surface area. Out of these three we have chosen to investigate the surface area. We will be using the enzyme from the liver and placing it in hydrogen peroxide, this will create oxygen and water, we will measure the amount of oxygen produced we will catch and measure it in a measuring cylinder. The equation for the breakdown of hydrogen peroxide with the enzyme Catalase is: In our preliminary results we are trying to find out if there are any flaws in the method that we need to assess and possibly change. Also I need to try and keep all the relevant factors the same so that there is no variation in the results from outside elements such as a difference in heat on different days, we will try and control this as much as

More about The Effect of Enzyme Catalase in the Breakdown of Hydrogen Peroxide

Open Document