Now, glycolysis is also known as the glycolytic pathway, and glycolysis actually involves many individual steps and many individual processes. And so we typically divide glycolysis into three different stages, stage one, stage two and stage three. Now, in this lecture, we're going to focus us on stage one. But before we take a look at the details of stage one, let's actually discuss what each stage actually does. So what's the point of stage one, stage two and stage three? Well, stage one basically aims to trap that glucose molecule inside the cytoplas on the cell so that the glucose cannot actually leave that cell.