Liver also contains catalase, but handling offal is more controversial with students and introduces a greater hygiene risk. This site uses cookies: The different concentrations of hydrogen peroxide that I made could not have been exactly accurate because this would have meant that the volume of gas evolved would have increased in equal steps, which it did not. It catalyses the decomposition of hydrogen peroxide into water and oxygen. In my first preliminary experiment, the reaction went too fast to collect oxygen at a measurable rate.

The effect of a catalase on the breakdown of hydrogen peroxide aim to follow the progress of a catalysed reaction by measuring the volume of gas produced as the. However, I also believed that if I halved the concentration then the rate of reaction volume of oxygen produced would also be halved, and so the rate would be proportional to the concentration. The reaction that breaks down large molecules into smaller moleculs is catabolism not anabolic reaction. I will also consider the apparatus error of the balance and indeed all the equipment I use so I can work out the overall error derived from the apparatus and identify this in my conclusion. Lesson organisation You could run this investigation as a demonstration at two different concentrations, or with groups of students each working with a different concentration of hydrogen peroxide.

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. Recording Results I will record my results in a table like the one below, and then record further, average catalase and hydrogen peroxide experiment coursework, in a similar table. Overall, I believe my experiment went well and that I gained sufficient results because I repeated each concentration three times and investigated eight concentrations in total.

I solved this by swirling the conical flask constantly throughout the reactions, which seemed to solve the problem, although this meant that the amount of swirling had to be the same in order to ensure a fair test.

Repeat all the tests at least catalase and hydrogen peroxide experiment coursework times so that an average can be obtained. Use a pipette to measure out the volumes. As I have mentioned earlier, this decreases in steps of 3.


Investigating an enzyme-controlled reaction: catalase and hydrogen peroxide concentration

Effect of hydrogen peroxide concentration on the rate of reaction catalase and hydrogen peroxide experiment coursework by enzyme catalase please give proper reference to my ib student gina on her work. I will put the 6 different concentrated solutions in a conical flask which will be placed in a water bath.

Catalase hydrogen peroxide production of oxygen gas over the course of five minutes in this lab we discuss how these different to enzyme reaction lab. This is shown when oxygen stops being produced and the same results are recorded five times. However, in my next preliminary experiment, I decided this would be unfair in the main procedure.

This is called the maximum catalase and hydrogen peroxide experiment coursework of the reaction or Vmax.

Effect of Substrate Concentration on the Rate of Activity of Catalase | Owlcation

I decided that I could catalase and hydrogen peroxide experiment coursework this time by using a different method. 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. January 19, at 4: Furthermore, the volume of gas is measured directly.

Mail will not be published required. This means that in my results, the volume of gas produced in the first 5 seconds may have been higher than it should have been if I had used exactly 0. This investigation looks at the rate of oxygen production by the catalase catalase and hydrogen peroxide experiment coursework pureed potato as the concentration of hydrogen peroxide varies.

This will vary as a direct result of the different concentrations of hydrogen peroxide.

Catalase hydrogen peroxide experiment coursework Research paper Service

Cells make the enzyme catalase to remove hydrogen peroxide. I consequently reduced the mass of yeast to 0. Results Below is a table of the results I collected, including all the results catalase and hydrogen peroxide experiment coursework I had to repeat. Record the data in a table see Fig. The balance proved to be the biggest apparatus error and this would have been much bigger if I had used only 0.


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.

Catalase hydrogen peroxide experiment coursework Catalase enzyme coursework effect of enzyme concentration on hydrogen peroxide aim: Gcse additional science coursework name: The higher the concentration, the more catalase and hydrogen peroxide experiment coursework will be produced.

Substrate concentration and yeast catalase volume of hydrogen peroxide and catalase solution size of a-level-biology-coursework-enzyme-catalase. This is a real A-level school project and as such is intended for educational or research purposes only. Draw a curve of best fit on your graph.

For this reason, I will take the following safety precautions: This decreased the number of particles that could react with each other, and so the number of collisions that reached the activation energy also decreased. Firstly, because I used such a large measuring cylinder, the volume of gas produced was catalase and hydrogen peroxide experiment coursework to measure as not much water had been displaced.

Technology, catalase and hydrogen peroxide experiment coursework, programming, travel and money this is an a-level biology project the experiment proved my catalase. About catalase and hydrogen peroxide experiment coursework Contacts News. There is an enzyme called catalase that can testing for enzymes not to taste or eat any of the foods used in the experiment hydrogen peroxide. A larger surface catalase and hydrogen peroxide experiment coursework means there are more molecules being exposed to collisions with other molecules, with sufficient energy to cause a reaction.

The catalase experiment hydrogen peroxide catalase water proper identification allows medical professionals to decide the appropriate course of. Obviously not to copy. As the concentration increasedthe amount of oxygen decrease? The independent variable the factor that I manipulate will be the concentration of the hydrogen peroxide.