Zak & Reiley / Frankie & Marv
Why it's the most important organelle.
When the mitochondria are working as they are supposed to, you will have all the energy you need (and more), you will be able to function properly, and all of your organs and cells will be working appropriately. The mitochondria is the most important because without it, the other organelles wouldn't be able to work at all. So you most definitely need it to work, or else you're nothing!