Functions of the mitochondria

Mitochondrial function
Matrix	Krebs cycle
	Mitochondrial protein synthesis
	β-oxidation of fatty acids
Inner membrane	ATP synthesis Respiratory chain

The main function of the mitochondria is to obtain energy, although each mitochondrial component has a different function:

The fact that mitochondrial compartments have different enzyme complexes implies that different functions will be carried out in each of them:

Krebs cycle. It takes place in the mitochondrial matrix.
Respiratory chain. In the Krebs cycle, a series of electrons are shed. Electron transporters are located in the inner mitochondrial membrane.
Oxidative phosphorylation. It takes place in the mitochondrial ridges. ATP-ase phosphorylates ADP and transforms it into ATP. This is how most of the ATP produced in aerobic cells is synthesized.
The β-oxidation of fatty acids. The enzymes involved in it are located in the mitochondrial matrix.
Concentration of substances in the inner chamber, such as proteins.

Mitochondria in sperm and cardiac cells

Mitochondria are the predominant organelles in sperm because they produce the large amount of energy they need to travel to the egg.

Heart cells also have many mitochondria, as they need to produce a lot of ATP to be used in the contraction and movement of the heart.