This lesson will demonstrate enzyme-substrate complex and how they work in a biochemical reaction. It will also introduce factors that effect the rate of enzyme activity. Students will be asked to model enzymes and how they work in a biochemical reaction by interacting with an egg as the reactant/substrate and producing a fried egg over easy. Students will be asked a series of questions along the way and later will work in small groups to come up with their own model of a short biochemical pathway (1-2 steps) and identify the enzymes involved in the process. The model or process they choose should come from their every day experiences.