Now, once inside the cytoplasm, so these are the cytochrom C molecules. The cytochrome C attaches to another type of protein known as apaf One. And once they attach, they form a special structure known as apotheosome. Now, what apothesome does is it basically goes on and activates a special type of protease protein known as Caspase Nine. And by activating Caspase Nine, we form a complex known as the active Cast Space Nine complex. And what this complex does is it moves around the organelles of our bot, of the organelles of that cell, and they break down those organelles and eventually they break down the DNA inside that cell.