A-Level Biology

The Induced Fit Model of Enzyme Action

In this video, we take a look at the two different models (or hypotheses) for how enzymes function. These are called the lock and key model and the induced fit model. First we explore the lock and key model and how this relates to the active site. We then look at the induced fit model. Finally, we see how the induced fit model has replaced the lock and key model for how enzymes function.