Does the respiratory system perform cellular metabolism?
I’m not entirely sure what you’re asking but I think you’re confusing “respiration” with “breathing”. The two terms get confused because non-scientists use them in slightly different ways to scientists. In scientific terms:- BREATHING is inhaling and exhaling air from the lungs. Confusingly, the lungs and associated organs, such as the windpipe are known collectively as the “respiratory system”. Non-scientists sometimes call breathing in and out “respiration”, which is where the confusion is caused. RESPIRATION is the metabolic process of releasing energy by breaking down glucose. All living cells (including those of the respiratory system) perform respiration and other normal metabolic processes.
