The Effect of Substrate Concentration on the Activity of the Enzyme Catalase Aim The aim of my experiment was to investigate the effect of substrate concentration on the activity of the enzyme catalyse. The Independent variable is the concentration of the substrate, hydrogen peroxide and the Dependent variable is the volume of oxygen produced in the cylinder. Apparatus 1. Large bowl of water 2. 100cm3 measuring cylinder 3. Delivery tube 4. Test tubes 5. Test tube stand 6. Lab coat 7. Graduated pipette (25cm3 ) 8. stop watch 9. Tap water 10. Test tube rack Equipment 1. Hydrogen peroxide 2. Deionised water 3. 1cm3 Yeast suspension 2% 4. Amylase enzyme Prediction I predict that as the substrate concentration increases, the rate of reaction will go up at a directly proportional rate until the solution becomes saturated with the substrate hydrogen peroxide. When this saturation point ......

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