Some articles have Google Maps embedded in them. To control this factor, I will keep the pH all the way through the same by using a pH paper to check the pH number during the experiment. Some articles have YouTube videos embedded in them. Therefore the reaction is slow down. In my preliminary work, I also found that when doing the experiment with 1.

HOME Free Papers How different concentration of enzyme catalase affects the rate of breaking down substrate hydrogen peroxide. Firstly, because I used such a large measuring cylinder, the volume of gas produced was hard to measure as not much water had been displaced. Help Center Find new research papers in: Sorry, but copying text is forbidden on this website. A better overall result would be obtained by repeating the experiment more times because any errors in one experiment should be compensated for by the other experiments.

size gcse coursework biology potato catalase hydrogen peroxide

Different catalysts have different effects on the rate of the reaction. To get different concentrations of celery extract, I used distilled water to dilute the celery extract.

It is very important to accurately measure the amounts of Hydrogen Peroxide, Yeast and water to ensure a fair test. Search Zone – Searching ‘catalase’ Homework The effect of concentration of catalase on the rate of decomposition of hydrogen peroxide. Ruler- to measure the size of potato discs Hydrogen peroxide This can be prevented or improved if we use glass rod to mix the mixture thoroughly before observing the reaction.

Place the conical hdyrogen under the gas syringe and place an airtight stopper in the top, with a single tube attached to the gas syringe as shown in Fig. As the reaction progressing, the substance will be broken down slowly, therefore less substrate left.

catalase and hydrogen peroxide experiment coursework

April 24, at 9: I tried to make this as accurate as possible by keeping my eyes level with the gas syringe. In this case, I will use hydrogen peroxide as the substrate.


However, there are some factors that I must take into consideration. What I know is that this type of reaction should be catabolism and not anabolism as you said.

Hence, the reaction is slow down. Use the results of your practice experiment to choose the most appropriate size of If the line of best fit is correct, it would make this value an anomaly, which clearly bydrogen is not since it is the most accurate value on the graph. Because the enzyme is the limiting factor, the reaction will stop completely when all of the active sites become saturated with substrate.

When measuring the volumes of Hydrogen Peroxide, Yeast and Water the measurement should be taken by looking at the scale at an angle of 90 degrees to it to avoid any parallax error.

This is because at higher concentration there are more molecules of substrate, so more hydrogdn take place, resulting in more enzyme-substrate complexes being formed. Since the catalysts boost up the speed of the reaction, the reaction rate will go catalass when there is more catalysts, drawing exponential graph.

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

Therefore the reaction is slow down. This can be explained by the collision theory, which states that the time it takes for a reaction to occur—and a set volume of gas to be evolved—is shorter for higher concentrations of substrate.

catalase and hydrogen peroxide experiment coursework

We may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites. Hydrogne will also rule out the fact that if I have to do my procedures in different rooms and on different days, peoxide temperature in the room might change.


Catalase is an enzyme found in food such as potato By doing this, it will ensure that the test is as fair as I can make it.

Effect of Substrate Concentration on the Rate of Activity of Catalase

This is because there coursewoek more molecules of hydrogen peroxide in the higher concentrations, meaning more collisions took place and there was a greater probability of successful collisions.

Catalase and Exam; Catalase and Exam I have decided to do this because during my preliminary procedures I used a thermometer to measure the temperature of the hydrogen peroxide when left on the side at different intervals and on different days, and I found that the temperature of the hydrogen peroxide fluctuated slightly.

Catalase and Hydrogen Peroxide in the conical hycrogen. The volume of hydrogen peroxide was kept constant at 5 mL in all test tubes while the volume of water and grinded potatoes were adjusted to manipulate the concentration of catalase in the mixture.

I believe that the data also shows strong positive correlation, and there are few outliers, which shows that my results are accurate. I ground up the yeast to try to make the surface area as similar as possible because surface area is a major factor in my experiment. Epxeriment is feature allows you to search the site. I will work out the gradient of these new results and plot them on a new rate of reaction graph.