Consequently, H_2Q and H_2O_2 could enter the cell and react under the catalysis of PO to produce BQ and H_2O.

• 当溶液中加入PO的底物(H_2Q和H_2O_2)后,它们可以扩散到细胞内,并在细胞内PO的催化下反应生成BQ和水。