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I'm a bit confused by the breath-hold where they breathed pure oxygen. The article claims that because they only started with oxygen in their lungs, that is all
by clort 9y ago
I'm a bit confused by the breath-hold where they breathed pure oxygen. The article claims that because they only started with oxygen in their lungs, that is all absorbed and nothing left by the end. But, where does the carbon dioxide go in this case? Your body is producing it, and it normally transitions from the blood into the lungs, to be exhaled. why doesn't it do that if there is only oxygen in there?
- thope 9y agoCorrect 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).