Because yeast is a catalyst, hydrogen peroxide reacts to it throughout the process of its breakdown, which causes the reaction to occur more quickly. Hydrogen peroxide gradually transforms into water and oxygen as a byproduct of its slow natural decomposition into these two elements.
However, the rate of the reaction may be increased by including active yeast in a solution containing peroxide. The addition of active yeast, a tiny amount of dish soap, and hydrogen peroxide at a concentration of 3 percent is one example of a chemical experiment that explains this reaction and is performed in middle school. What ends up occurring is the rapid production of oxygen gas bubbles, and at the same time, the soap starts to develop foam. It may be deduced from this that the active yeast acts as a catalyst.