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. And to see our example, let's take a look at the following paragraph. So basically another important enzyme in our glycolysis process is known as phosphorptokinase. What phosphorptokinase does is it basically transforms a molecule known as fructose six phosphate into fructose one six biphosphate.