why we breathe in oxygen and breathe out carbon dioxide give reson
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When we exhale, we breathe out less oxygen but more carbon dioxide than we inhale. The carbon we breathe out as carbon dioxide comes from the carbon in the food we eat. ... The glucose molecule is then combined with oxygen in the cells of the body in a chemical reaction called "cellular oxidation
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you inhale oxygen because you need oxygen for some biological processes. A fairly important one is the production of ATP, the energy all of our cells use. In the process, electrons are used and oxygen has a high affinity for electrons. The waste products of this process are Carbon Dioxide and Water, in different steps along the way.
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