Explain the role of mitochondrion.

The main role of mitochondrion is the production of ATP (adenosine triphosphate).

Explanation:

The main role of mitochondrion is the production of ATP (adenosine triphosphate). ATP is obtained, for example, through the phosphorylation of ADP [adenosine diphosphate]).

Mitochondrion obtain energy through aerobic respiration. When oxygen is scarce, they can obtain it by anaerobic fermentation, though.

Mitochondrion have many other functions and roles.

They are known as the power house of the cell. They are organeles that act as a digestive system which then they take in nutrients, break them down, and create energy for the cell. This process is also known as cellular respiration.