Watch the following video https://www.khanacademy.org/science/biology/cellular-


Watch the following video
https://www.khanacademy.org/science/biology/cellular-respiration-and-fermentation/intro-to-cellular-respiration/v/introduction-to-cellular-respiration
Answer the following questions:
Classify the type of chemical reaction represented above.
After watching the video, identify the three stages of cellular respiration. Be sure to point out whether each step is aerobic, which means it requires oxygen, or anaerobic, which means it does not require oxygen.
Next, identify how many ATP molecules are generated in each step of cellular respiration.
Lastly, please describe in a couple sentences why oxygen is necessary for the aerobic steps in cellular respiration. After all, approximately 20% of the air we breathe is oxygen, and approximately 80% is nitrogen. Why isn’t nitrogen used in respiration instead of oxygen? To guide your answer, please consider the electronegativity of oxygen.


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