Explain the connection between cellular respiration and carbon dioxide production. that is, why does carbon dioxide procution increase during exercise?

Hi there.

Think to the last time you exercised - you were probably breathing hard. Lots of exhaling, yeah?

When we exhale, we produce carbon dioxide. During exercise, you are exhaling out much more, which produces CO2.

This was a fairly simple answer. If you were looking for something more detailed, try expanding upon the info I gave you.

Hope this helped :)