Eventually, when we build up the concentration of these green molecules, one of these green molecules act as an inhibitor. It binds to an allosteric site on the enzyme that is different than this active side and that deactivates or inhibits the activity of our enzyme. So this is an example of negative feedback inhibition. Now what about the positive feedback? So in some instances the effector molecule that binds to the allosteric site of the enzymes doesn't actually deactivate it, but it activates the activity of that enzyme and these effective molecules are known as activated and this process is known as positive feedback. Now, in the same way that glycolysis has negative feedback inhibition, it also has positive feedback.