Mitochondria are organelles exclusive to eukaryotic cells and not found in prokaryotic cells. They are responsible for cellular respiration and energy production, distinguishing eukaryotic cells from prokaryotes, which lack such membrane-bound organelles.
The organelle that eukaryotes and prokaryotes do NOT have in common is the mitochondrion. One of the distinguishing features of eukaryotic cells is the presence of membrane-bound organelles, such as the nucleus, endoplasmic reticulum, Golgi apparatus, and mitochondria.
The mitochondria are often referred to as the powerhouses of the cell, as they are the site of cellular respiration and energy (ATP) production. These organelles are exclusive to eukaryotic cells and are believed to have originated from free-living aerobic organisms that entered into a symbiotic relationship with the precursor of modern eukaryotic cells.
Unlike eukaryotes, prokaryotic cells, such as bacteria, lack a nucleus and other membrane-bound organelles and are generally smaller. Both cell types have plasma membranes, cytoplasm, double-stranded DNA genomes, and ribosomes, which are involved in protein synthesis. However, prokaryotes do not have mitochondria.