Pour enough hydrogen peroxide into the cup so that potato is submerged and observe. Though in theory, this should be the trend, my results did not demonstrate this pattern. Draw a new graph. I will work out the gradient of these new results and plot them on a new rate of reaction graph.
In addition, your access to Education. For example, if there were more molecules of yeast, the rate of reaction would increase because there would be more collisions between enzyme and substrate molecules.
Apparatus and Chemicals For each group of students: I will then work out the gradient of the two concentrations and plot them on a rate of reaction graph along with the other concentrations. For example, the final average volumes of gas were as follows: If collecting the gas over water is complicated, and you have access to a cm3 gas syringe, you could collect the gas in that instead.
Each piece of apparatus has an apparatus error with an upper and lower limit. It was very hard to insert the small 5cm3 beaker into the conical flask, and when it came to tipping it over, some of the substrate was still trapped inside the beaker.
Measure another 20 cm3 pureed potato into it. Catalase decomposes, or breaks down, hydrogen peroxide into water and oxygen. Wash splashes of pureed potato or peroxide off the skin immediately. Reassemble the apparatus, refill the measuring cylinder, and repeat from g to j with another concentration of hydrogen peroxide.
This is because the heat degraded the catalase enzyme, making it incapable of processing the hydrogen peroxide. Implementation of any Science Project Idea should be undertaken only in appropriate settings and with appropriate parental or other supervision.
Now that I have carried out the repeats and plotted the points on the rate of reaction graph, I can see that the graph is in fact clearly linear. Go further in this experiment by looking at a very small sample of potato combined with hydrogen peroxide under a microscope!
This should tell me whether the reaction is indeed a first-order reaction, or if a curve of best fit is required. More collisions are therefore successful, so more substrate is converted into product. Liver also contains catalase, but handling offal is more controversial with students and introduces a greater hygiene risk.People invited to a presentation do not need a Prezi account; Transcript of Effect of Heat on the Activity of Catalase in Hydrogen Peroxide.
Effect of Temperature on Enzyme Activity (5 were used in this experiment for efficiency)-safety goggles-Yeast% H2O2 solution-Water bath incubator.
Let us write or edit the lab report on your topic "Action Of Enzyme Catalase On Hydrogen Peroxide" with a personal 20% discount. enzyme Catalase. In this experiment I will be using yeast as a source [tags: GCSE Chemistry Coursework Investigation] - The Effect Of Catalase On Hydrogen Peroxide Planning Catalase is an enzyme found in the blood and in most living cells its job is to speed up the decomposition of hydrogen peroxide into water and oxygen.
2H2O2. Apr 30, · This is because as there are progressively fewer molecules of hydrogen peroxide there will be fewer collisions between the substrate and enzyme molecules (catalase in yeast), leading to a decrease in enzyme-substrate complexes ultimedescente.coms: 5. CATALASE AND HYDROGEN PEROXIDE Introduction My coursework is on catalase activity.
This is done using hydrogen peroxide and two independent variables of my choice. I carried out a preliminary experiment so that I got a basic idea of what I was doing and what to expect. The test was carried out, using potato as a source of catalase and reacting it with hydrogen peroxide and ph.
Five different ranges were used for the two variables and each test was repeated 3 times with new pieces of potato discs and the volume of oxygen was measured.Download