A chemical process that takes place in living cells, by which living organisms use organic compounds to create energy. One of the bi-products of respirationA chemical process that takes place in living cells, by which living organisms use organic compounds to create energy. One of the bi-products of respiration is the gas carbon dioxide, which... More is the gas carbon dioxideA gas (chemical formula CO2), which occurs naturally in the Earth's atmosphere. Carbon dioxide is given off by organisms when they respire, and it is absorbed by organisms like plants and... More, which is released into the air or water. Respiration is therefore a key process in the carbon cycleDescribes how carbon moves around the environment. It is an example of a biogeochemical cycle. See also carbon flux. In recent years the carbon cycle has been studied intensively in order to... More.

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