mitochondria

A mitochondrion (/ ˌ m aɪ t ə ˈ k ɒ n d r i ə n /; pl. t1 : mitochondria) is an organelle found in the cells of most eukaryotes, such as animals, plants and fungi. t1 Mitochondria have a double membrane structure and use aerobic respiration to generate adenosine triphosphate (ATP), which is used throughout the cell as a source of chemical energy