All of these

It has a negative Gibbs free energy

It is thermodynamically favorable

It requires oxygen

High energy electrons pass through them resulting in the pumping of hydrogens across the mitochondrial inner membrane

The complexes directly create ATP as high energy electrons pass through them

High energy electrons pass through the complexes in order to reduce and to and

High energy electrons pass through the complexes in order to create glucose molecules

High energy electrons pass through the complexes in order to ultimately turn water molecules into oxygen

Oxygen

FADH2

NADH

NADPH

Coenzyme Q

Low concentration of

High concentration of

Higher pH in the matrix than in the intermembrane space

High levels of

High concentration of in the intermembrane space

Oxygen accepts electrons that have run through the electron transport chain

Oxygen acts as a catalyst for the pumping of hydrogens through the protein complexes in the electron transport chain

Oxygen allows the electrons from and to enter into the electron transport chain

Oxygen is converted to water by the addition of hydrogen atoms which can then accept electrons from the electron transport chain

Oxygen reattaches hydrogen and electrons to and after the electron transport chain is finished