๐Ÿงฌap biology review

Mitochondria

Written by the Fiveable Content Team โ€ข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโ€ขWritten by the Fiveable Content Team โ€ข Last updated September 2025

Definition

Mitochondria are organelles within eukaryotic cells that produce most of the cellโ€™s supply of adenosine triphosphate (ATP), used as a source of chemical energy.