What is mitochondria?

Answer 1

Mitochondria are organelles, the small objects in the cell that carry out the necessary functions of life. Mitochondria themselves carry out cellular respiration and create energy (ATP) for eukaryotic cells - for this reason they are sometimes called the "powerhouse" of the cell. Mitochondria are found in all eukaryotic cells to turn any kind of food into energy, whether that organism created it or not.
A mitochondria is an organelle in a cell which converts pyruvate to ATP. pyruvate comes from the breakdown of glucose and ATP stands for adenosine triphosphate. The cell uses ATP to power cell functions.

Answer 2

Mitochondria are membrane-bound organelles that generate the majority of a cell's supply of adenosine triphosphate (ATP), which is used as a source of chemical energy. They are commonly referred to as the powerhouse of the cell due to their role in producing energy through cellular respiration. Mitochondria also play a critical role in other cellular processes, such as apoptosis (programmed cell death) and signaling.