Tags: Disease.
Mitochondrial disease is a group of disorders caused by dysfunctional mitochondria the organelles that generate energy for the cell. Mitochondria are found in every cell of the human body except red blood cells and convert the energy of food molecules into the ATP that powers most cell functions.Mitochondrial diseases are sometimes (about 15% of the time) caused by mutations in the mitochondrial DNA that affect mitochondrial function.