Which of the following is common to both respiration and photosynthesis?

In the electron transport system in the inner mitochondrial membrane,complex-$I$ and $IV$ are respectively:

How many complexes are involved in the electron transport system $(ETS)$ in mitochondria?

In the electron transport chain during terminal oxidation,the cytochrome,which donates electrons to $O_2$ is

The process by which $ATP$ is produced in the inner membrane of a mitochondrion,where the electron transport system transfers protons from the inner compartment to the outer,and as the protons flow back to the inner compartment,the energy of their movement is used to add phosphate to $ADP$,forming $ATP$,is known as:

Complex $III$ in the $ETS$ is.............