Power takes many forms. In physics class, we might think of it as what it takes to move a mass of X from point A to point B. Or in politics, perhaps it is the influence an individual or institution leverages to achieve its objectives.  But when it comes to biology, the “seat-of-power” resides along membrane leaflets within ancient microbially-derived organelles, and for those of us within the animal kingdom we call them “mitochondria.”