We have this special location in that enzyme that we're going to discuss in much more detail in the next lecture. But this special location in the enzyme is known as the active side. And it's the active side that creates a microenvironment and binds to these molecules here. So these reactants will move into the active side of that enzyme, creating the enzyme substrate complex. And what the enzyme actually does inside that active side is it stabilizes this partially broken bond and this partially formed bond. And by stabilizing these partially broken or formed bonds, it lowers the energy of activation.