Fun Fact: Did you know your cells can borrow powerhouses from each other—literally? For over a century, biology textbooks taught us that mitochondria—the so-called “powerhouses of the cell”—live quietly inside individual cells, converting food into energy and minding their own business. But recent discoveries suggest that mitochondria might actually be on the move—travelling between cells …
Fun Fact: Several thousand mitochondria work in a single heart muscle cell, whereas up to 100,000 work in a mature egg cell. Relative to their weight, they produce 10,000–50,000 times more energy than the sun—energy in the form of adenosine triphosphate (ATP). When you think about energy production, you might picture power plants or solar …