How Induced Fit Model Lowers Enzyme Activation Energy | A Level Biology Revision

In this video, our expert A Level Biology Tutor explains how the induced fit model of enzyme action reduces activation energy in biochemical reactions. The induced fit model describes how the enzyme's active site is not perfectly complementary to the substrate initially. However, once the substrate enters the active site, both the enzyme and substrate undergo slight shape changes. This bending of bonds reduces the amount of energy needed to break or form bonds during the reaction.

Using a simple analogy of bending a ruler, we illustrate how the enzyme-substrate complex lowers activation energy, making reactions more efficient. Learn how this dynamic model contrasts with the older lock-and-key model and how it plays a crucial role in biological processes.

If you're studying A Level biology or looking to deepen your understanding of enzyme kinetics, this video will clarify the role of enzymes in reducing activation energy and help you grasp key concepts in biochemistry.

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