AP Biology Lab 5: Cellular Respiration

Mr. Anderson guides students through an AP biology lab on cellular respiration, focusing on measuring respiration rates using a respirometer. The lab involves using worms and peas to observe oxygen consumption and carbon dioxide production. Key steps include glycolysis, the Krebs cycle, and the electron transport chain. The experiment uses potassium hydroxide to absorb CO2, allowing for accurate measurement of oxygen consumption. Data analysis reveals that germinating peas have the highest respiration rate, followed by worms and non-germinating peas.

Describe the role of mitochondria in cellular respiration.

What are the three main steps of cellular respiration mentioned in the text?

What is the primary purpose of the lab described in the text?

How does potassium hydroxide function in the respirometer setup?

What is the significance of using both germinating and non-germinating peas in the experiment?

Explain how the rate of respiration is measured in the experiment.

What conclusions can be drawn from the data collected in the experiment regarding the respiration rates of different subjects?