The student provides a focused and detailed description of the main topic, although it would be better to include a title and clearly highlight the aim of the investigation. The student successfully presents a focused and detailed research question. They also include relevant and focused background information about the enzyme studied. However, the biology is not explained well enough for readers with minimal biological background to fully understand. The student states and explains both a null and an alternative hypothesis. The methodology of the investigation is highly appropriate to the topic, with the student using titration with iodine. The methodology is also focused on answering the research question, correctly identifying the independent and dependent variables. Additionally, the methodology includes appropriate steps to assure the relevancy and validity of the obtained results, with a list of controlled variables provided. However, there is no section devoted to risk assessment, ethical concerns, and environmental issues, which should be addressed.