This is used to collect data on traffic to articles and other pages on our site. Click to learn more https: The rate of reaction at higher substrate becomes constant. Call Us This is called the maximum velocity of the reaction or Vmax.

Catalase speeds up the decomposition of Hydrogen Peroxide into water and oxygen as shown in the equations below. This is the very good the piece of the work but i think the conclusion could be the better man so the marks could the be the highest. The hydrogen peroxide is inserted into a 5cm 3 beaker and then tipped over to ‘spill’ the contents and start the reaction. This is an A-level biology project. The x axis is fine. The reaction is exothermic, meaning heat is produced in the reaction.

By Alford Ico Ico. Potato Catalase – blogspot. Because each yeast granule has a different surface area, the amount of enzyme will differ in each granule. A level Wxperiment Coursework – Effect of substrate concentration on rate of activity Repeat steps using the different concentrations of hydrogen peroxide and making sure to wash the equipment thoroughly after each peroxdie.

Because a pipette is a very accurate way of measuring volumes, I believe that this will be the best method to make the concentrations. In other words, the rate is proportional to the concentration. In human body, most enzyme work fastest at an optimum pH of about 7. We may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in epxeriment to advertise the HubPages Service to people that have visited our sites.

catalase and hydrogen peroxide experiment coursework

Placing potato cylinders in hydrogen peroxide will No data is shared with Paypal unless you engage with this feature. I believe this will make my experiments more accurate because any fluctuations in temperature will be eliminated.


How different concentration of enzyme catalase affects the rate of breaking down substrate hydrogen peroxide How About Make It Original? 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.

size gcse coursework biology potato catalase hydrogen peroxide

In the main procedure, I will control the temperature with a water bath in order to create a constant external temperature and dissipate the heat energy. Hopefully, you will record concordant results for each repeat, coursewrok if an anomaly occurs you can discount it and repeat the procedure again.

Why you wrote that it is directly proportional? I may, however, need to change this as I have not done a preliminary experiment catalwse a water bath. Next time, they should listen and read more precisely.

Furthermore, the volume of gas is measured directly. Introduction Catalase is an enzyme which is found in most living organisms. How different concentration of enzyme catalase affects the rate of breaking down substrate hydrogen peroxide.

Effect of Substrate Concentration on the Rate of Activity of Catalase

Safety Hydrogen peroxide, if inhaled or in contact with the skin or eyes, can hydrogwn very dangerous and toxic. We may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.


The substrate concentration at this point, even if increased, will not affect the rate of reaction because it is the enzyme which is in low concentration. The concentration of catalase is varied by adding different amount of potatoes and water with respect to the total volume of 10 mL of mixture of potatoes, water and hydrogen peroxide.

catalase and hydrogen peroxide experiment coursework

Some articles have YouTube videos embedded in catlase. H 2 O 2 Size Gcse Although it is officially known that catalyst had a limiting state where it can no longer make the speed of reaction faster, this experiment does not support this part of hypothesis since the graph in the result section is upward sloping without being stagnant. Cambridge International Examinations Cambridge Limitations To help make this experiment more accurate, I repeated it three times and then used the average of all the results to plot a graph with a line of best fit.

Questions must be on-topic, written with proper grammar usage, and understandable to a wide audience. The result we obtained agrees with the hypothesis that the rate of decomposition of hydrogen peroxide increases with the concentration of catalase in the mixture.

catalase and hydrogen peroxide experiment coursework

One such variable will be the mass of yeast for each experiment 0. I was wondering how i could reference this page in APA format. Enzyme works in the same way as a key operates a lock.