Now, this water needs to be released somewhere because if the water remains, there's a build up of water and now cell would eventually stop functioning. So this water leaves through some outside pump and is stored somewhere else. Now, notice, the same way we need to allow H two molecules inside our ano, we need to allow o two molecules inside our capital. And that's why we have this guy here. When this enters, when this oxygen enters the capital, it reacts with the H plus I the electrons coming in, and it forms our water. And this is a continuous process and it powers some outside source in this area here.