Hydrogen peroxide coursework

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hydrogen peroxide as a substrate

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.

So to avoid this problem, I will keep the water bath has the temperature of 25?

catalase and hydrogen peroxide experiment surface area

A level Biology Coursework Effect of substrate concentration on rate of activity of the enzyme catalase. This released oxygen can be measured in order to study the enzyme activity. Firstly, more oxygen dissolves in water at low temperatures than at high temperatures, meaning that for the reactions involving low concentrations, more oxygen would have dissolved than in the higher concentrations because of the decreased amount of heat energy given off.

investigating an enzyme controlled reaction catalase and hydrogen peroxide concentration

Figure 6. Surface Area of Yeast Molecules 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.

Liver and hydrogen peroxide lab report

I believed this was accurate, but upon reflection, using a pipette would have been much more accurate as pipettes have a much lower apparatus error than volumetric flasks. Including LibraryPirate Interactive Figures Vivid images with related questions help you come to class. A larger surface area means there are more molecules being exposed to collisions with other molecules, with sufficient energy to cause a reaction. Firstly, more oxygen dissolves in water at low temperatures than at high temperatures, meaning that for the reactions involving low concentrations, more oxygen would have dissolved than in the higher concentrations because of the decreased amount of heat energy given off. This is because at higher concentration there are more molecules of substrate, so more collisions take place, resulting in more enzyme-substrate complexes being formed. Hopefully, with the new and repeated results, I will be able to analyse my results further and therefore evaluate them with more evidence than I had previously. Below is a summary of all the percentage errors.
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