problem:
Answer the following question:
Question 1: Imagine you decide to go for a run. As you exercise, what do you think happens to the demand of glucose? What about for oxygen? Explain how/why exercising alters the demand for these materials.
Question 2: During your run, do you think you are producing more or less CO2 then you are when you are at rest?
Any ideas? Or better yet, pointers to places where this has already been answered?