4 ms·
Correct me if I'm wrong, but maybe the carbon dioxide you exhale comes from the air you inhale. No air in, no carbon dioxide out.
by thope 9y ago
Correct me if I'm wrong, but maybe the carbon dioxide you exhale comes from the air you inhale. No air in, no carbon dioxide out.
- jdblair 9y agoCorrection: https://en.wikipedia.org/wiki/Respiration_(physiology) https://en.wikipedia.org/wiki/Respiration_(physiology)
- thope 9y agoOk thank you, I also found a short answer[0]. It seems the carbon comes from the conversion of glucose; that is, from food. [0] http://www.smh.com.au/news/big-questions/we-breath-in-oxygen-and-breath-out-carbon-dioxide-where-does-thecarbon-come-from/2008/06/06/1212259085199.html http://www.smh.com.au/news/big-questions/we-breath-in-oxygen...
- jjoonathan 9y agoYour metabolism looks like a combustion process: O2 + hydrocarbons -> CO2 + H2O. The carbon comes from food you ate. If you aren't breathing out CO2, you're either not metabolizing or you're storing the "burned" carbon in an undesirable metabolic byproduct (e.g. lactic acid).