Experiment

Conclusion:

Catalase is used to break down hydrogen peroxide into its component parts. Using the ruler attached to the side of the beaker, it was observed that there was an increase in the height of the foam after each 30-second interval. The graph effectively illustrates that as time progressed the height of the foam increased. Therefore, the effect of catalase on hydrogen peroxide was observed through the foam, the foam indicates the amount of oxygen gas being released over a specific period of time. When catalase is added to hydrogen peroxide, a decomposition reaction takes place in which water and oxygen gas are formed. The bubbles and the fizzing produced during the reaction indicate the release of oxygen gas.

Purpose:

To observe the effect of the enzyme catalase on hydrogen peroxide through monitoring the increase in the height of the foam after each 30-second interval.

Materials:

- 600 mL beaker

- 200 mL of hydrogen peroxide

- 15 cm ruler

- 75 g of potatoes

- Stopwatch

Procedure:

1) Gather all the necessary materials

2) Attach a 15 cm ruler starting at the 200 mL mark on the beaker (to measure the height of the foam after 30 second intervals)

3) Pour 200 mL of hydrogen peroxide into the beaker

4) Next, add 75 g of potatoes into the beaker containing the hydrogen peroxide

5) Measure the height of the foam on the beaker after each 30-second interval. Record observations.