Mitochondrial disease is a group of disorders caused by dysfunctional mitochondria, the organelles that generate energy for the cell.itochondrial diseases are sometimes (about 15% of the time) caused by mutations in the mitochondrial DNA that affect mitochondrial function.
1 Surface-mounted light â the finished housing is exposed, not flush with surface. 2  Chandelier. 3  Pendant light â suspended from the ceiling with a chain or pipe.  Sconce â provide up or down lights; can be used to illuminate artwork, architectural details; commonly used in hallways or as an alternative to overhead lighting.
Tail Light. A tail light or a tail lamp is the part of the lighting system of a vehicle which is attached in front and at the rear part of the vehicle. They usually come in pairs (left and right). It has different types for different functions. The signal lights, or turn lights, are parts of the tail lamp assembly. tail light or a tail lamp is the part of the lighting system of a vehicle which is attached in front and at the rear part of the vehicle. They usually come in pairs (left and right).