The Effect of Catalyse Enzyme on hydrogen Peroxide

Investigation: Catalyse enzyme on hydrogen peroxide.
PLANNING.
I have chosen the experiment task; this is to investigate the effect of the potato disk catalyse enzyme on hydrogen peroxide.
Catalyses break down Hydrogen Peroxide into oxygen and water. Catalyse in one of the many enzymes that work bests between 30 and 40 degrees.
Variables to change and those to keep the same.
Change:
• Temperature
• Concentration of Catalyse (enzyme)
• Concentration of Hydrogen Peroxide
• pH.
• Size of potato discs / Surface area
I’ve decided to experiment with various temperatures.
The variables in the experiment that will change because of what I do are listed below:
• Volume of gas given off / evolved
• Time
The experiment is to measure the amount of oxygen given off over 10 minutes. This will be measured every 30 seconds.
Keep the same:
To ensure this is a fair test I will control the following variables and keep them all the same.
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