This document summarizes an experiment that uses potatoes as a source of catalase to catalyze the decomposition of hydrogen peroxide. The experiment aims to determine if different types of potatoes contain different amounts of catalase by measuring the rate of hydrogen peroxide decomposition. Potatoes were chosen because they naturally contain catalase, which can break down hydrogen peroxide, allowing researchers to compare the cellular activity and metabolic rates of different potato varieties.

1. Decomposition of Hydrogen Peroxide using PotatoesDan LiuChris RenNatalie WongSimon Wu

2. Introduction/Background informationPotatoes are a major food source for the Chinese people

3. Why do catalase relate to our lab?Potatoes contain catalase which can be used as catalysts to speed up the decomposition of hydrogen peroxide.

4. Our LabAimResearch Question

5. Controlled Variables15mL of hydrogen peroxide.Type of hydrogen peroxide (10%).Exactly 3.00 ± 0.01 grams of each type of potatoTemperature of hydrogen peroxide Same equipment will be used

6. General Description of Experiment

7. Example of Data Collection

9. Analysis

10. AnalysisWhen a potato has more catalase, it means that it produced the catalase in order to decompose hydrogen peroxide, thus the more catalase a potato has, the more hydrogen peroxide it has in the body.

11. AnalysisMore hydrogen peroxide means more metabolic reactions, and more catalase would mean greater cellular activity

12. ConclusionDifferent types of potatoes have different amounts of cellular activity and metabolic rates

13. Weaknesses and ImprovementsPotato SizePerhaps compare with other types of food