What volume of Hydrogen peroxide breaks down yeast?

AIM

My aim of this experiment is to find out what concentration of hydrogen peroxide breaks down yeast quicker, I will achieve this by doing a practise test, then 2 sets of results and then find out an average.

I predict that the higher the concentration of hydrogen peroxide the faster the break down of yeast. The higher the concentration of hydrogen peroxide the higher the rate of reaction. I know this because of the ‘COLLISION THEORY’. The collision theory tells me that the higher the temperature of a substance the higher the rate of reaction you will get. The temperature in my case depends on the concentration hydrogen peroxide. So the higher the concentration of hydrogen peroxide the faster it will react with the yeast and the higher the concentration of hydrogen peroxide the more heat I will get. So the weaker the concentration of hydrogen peroxide the less hot it will be because it is weaker. The collision theory also tells me that the higher the concentration of hydrogen peroxide I use the more rate of reaction I will get because the particles in the yeast will be cold at first and therefore they will be moving very slowly, so there wont be any reaction but the warmer they get the faster they go, so when I pour my hydrogen peroxide into the conical flask which contains the yeast it will slowly start to warm the particles up, and like I said before the hotter they get the faster they go and the heat depends on the concentration of hydrogen peroxide so the higher the better for a higher rate of reaction, and the faster they go the harder they collide and they will collide more often if they are going fast. I also know that there are enzyme particles in the yeast, an enzyme looks like this:

The enzyme is now at the right shape. For an enzyme to do the job right it needs to be at the right shape, and for this it needs to be at the right temperature, the right temperature is usually about 40oc. The variable I changed was the concentration of the hydrogen peroxide; the variable I measured was the gas (cm3) I collected, I measured it every 15 seconds. The variables I kept the same were the amount of liquid that went into the conical flask, the temperature of the water, the amount of water in the plastic bowl ...