How do your lungs facilitate the process of cellular respiration (making glucose into atp) in your body?

Chemical energy from the breakdown of sugars or other organic molecules is used to make ATP. This process is also known as cellular respiration. Second, ATP provides the energy for most biological processes. When ATP breaks down into ADP and P, this releases energy which is used for many different cellular processes. Cellular Respiration is what the lungs provide through breathing, what the lungs do on a cellular level. 

it would lead to upper respiratory infections and pneumonia.