\(6nCO_2+5nH_2O\xrightarrow[\text{chất diệp lục}]{\text{ánh sáng}}\left(-C_6H_{10}O_5-\right)_n+6nO_2\\ \left(-C_6H_{10}O_5-\right)_n+nH_2O\underrightarrow{axit}nC_6H_{12}O_6\\ C_6H_{12}O_6\xrightarrow[t^o]{\text{men rượu}}2C_2H_5OH+2CO_2\\ C_2H_5OH+3O_2\underrightarrow{t^o}2CO_2+3H_2O\)