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What is a difference between cellular respiration and the combustion of fossil fuels?

User Goyuix
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In cellular respiration, glucose is broken down by reacting it with oxygen to produce carbon dioxide and water.

C6H12O6 + 6O2 -> 6CO2 + 6H2O

In fossil fuels, methane or any other fuel is combusted using oxygen.
CH4 + 2O2 -> CO2 + 2H2O

The combustion of glucose happens in cellular respiration.
User EpiMan
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