# Catalase investigation essay

Investigation - Hydrogen Peroxide Biology Investigation - Hydrogen Peroxide An investigation into how the concentration of the substrate 'hydrogen peroxide' affects the rate at which it is broken down to oxygen and water by the enzyme catalase Hydrogen peroxide is released due to many metabolic reactions in the body, which gives toxicity to the living cells.  Get Full Essay Get access to this section to get all help you need with your essay and educational issues. Get Access Investigation into the Enzyme Activity of Catalyze in the Decomposition of Hydrogen Peroxide Essay Sample In this pre-designed procedure the enzyme activity of catalase in a potato was tested, in the form of measuring the volume of the Oxygen O2 released by a catalase — hydrogen peroxide H2O2 Catalase investigation essay in the span of one minute.

The more oxygen released by the reaction the higher the enzyme activity was assumed to be, as more of the product was released in the same period of time.

## Investigation - Hydrogen Peroxide | Biology - Free Science Essay - Essay UK

The variable to be tested was the substrate concentration of the reaction, in this case the hydrogen peroxide. Qualitative Data — In set one, where 0.

After this first phase the rate would speed up, and consistently rise at the same pace until about a minute had gone by, at which point the rate of rising fell again.

Calculating the Average As can be seen in the above table, for each set of 5 trials with a different amount of hydrogen peroxide used there were 5 separate, and usually similar results. These 5 results were used then to calculate the average, or mean, of that set in order to find the statistical middle of the results.

The purpose of finding the average is to boil down the 5 results and to find the general picture of the values, which then makes the process of comparing the results of the separate sets far easier.

To calculate the average of the different sets I added all of the values of a set together, and then divided them by the number of values added, which in the normal case was 5.

For example, to find the average of the first set, where 0. Sets 3 and 4 were complicated by the fact that in both sets there were values that can be classified as anomalies, as they both deviated from the rest of the values in that set so much that they could not be considered when calculating the average, and must therefore be disregarded, as for some reason those trials failed.

In these cases I used the same procedure as for the other sets, but instead of dividing by 5 in the end I divided by 4, as the anomaly was not considered. Therefore, the calculations for Set 4 looked like this: The reason for finding the SD is to be able to see how much the results tend to diverge from the average, and therefore be able to see how accurate and consistent your results are.

If there is a small SD it means the results tend to be close to the average result, meaning that they are all relatively close together.

If the SD is a large number, it means the results are far away from each other, meaning your results are not that consistent.

In order to find the SD I used the following formula: The following table shows the standard deviation of the different sets of trials.The aim of this experiment is to find out the effect of temperature on catalase or hydrogen peroxide.

This will enable us to tell at what temperature hydrogen peroxide is most efficient. Investigation - Hydrogen Peroxide An investigation into how the concentration of the substrate 'hydrogen peroxide' affects the rate at which it is broken down to oxygen and water by the enzyme catalase.

Essay The effect of catalase concentration on the breakdown rate of h2o2 - The effect of catalase concentration on the breakdown rate of h2o2 The effect of catalase concentrations on the rate of Break down of hydrogen peroxide Scientific knowledge and understanding: A rate is a measure of change that occurs in a given time whilst a reaction is the interaction of substances undergoing chemical.

Catalase Essay. A. Pages:6 Words This is just a sample. Catalase is a common enzyme found in nearly all living organisms exposed to oxygen. It catalyzes the decomposition of hydrogen peroxide to water and oxygen. The Influence of pH on the Activity of Catalase Enzyme ; Investigation of temperature on catalase activity ;.

An Investigation Into The Effect Of PH On The Activity Of Potato Tissue Catalase Aim The aim of my investigation is to see how pH affects the activity of potato tissue catalase, during the decomposition of hydrogen peroxide to produce water and oxygen.

Investigation into how pH levels affect Catalase activity in potato samples – (enzymes) Introduction: The aim of this investigation is to understand and monitor the effects pH levels have on catalase activity within controlled potato samples.

Investigation - Hydrogen Peroxide | Biology - Free Science Essay - Essay UK