New answers tagged

4

Your description of it is largely correct, but the electron transport chain does not simply "dump" charged oxygen ions in the mitochondrial matrix. Instead, cytochrome C oxidase (complex IV) binds the O$_2$ molecule to one of its heme groups, and the reduction O$_2$ + 4 H$^+$ + 4 e$^-$ $\rightarrow$ 2 H$_2$O occurs at the heme group before water is released. ...



Top 50 recent answers are included