<Dl> <Dd> C H O + 4 H O → 2 CH COO + 2 HCO + 4 H + 4 H </Dd> </Dl> <Dd> C H O + 4 H O → 2 CH COO + 2 HCO + 4 H + 4 H </Dd> <P> Glucose could theoretically be converted into just CO and H, but the global reaction releases little energy . </P> <P> Acetic acid can also undergo a dismutation reaction to produce methane and carbon dioxide: </P>

Which process or processes directly generate co2 in humans