7.3.1 - What is going on inside McKenna's body that is making her feel the way she does?

7.3.2 - Can we see anything different inside McKenna that looks different?

7.3.3 - Why do molecules in the small intestine seem like they are disappearing?

7.3.4 - What happens to food molecules as they move through the small intestine and large intestine?

7.3.5 - Why do large food molecules, like complex carbohydrates, seem to disappear in the digestive system?

7.3.6 - What happens to the different substances in food as it travels through the digestive system?

7.3.7 - What is the function of the digestive system, and how is McKenna's digestive system different?

7.3.8 - What does the surface of McKenna's small intestine look like up close compared with a healthy one?

7.3.9 - How can a problem in one body system cause problems in other systems?

7.3.10 - Why is McKenna losing weight?

7.3.11 - What happens to matter when it is burned?

7.3.12 - What is the chemical reaction happening in our body that burns food?