Induced Fit Model Diagram (Figure 8.6). Reprinted from OpenStax Microbiology (p. 300), by N. Parker, M. Shneegurt, A.-h. Thi Tu, B. M. Forester, and P. Lister, 2016, Rice University. Copyright 2016 by Rice University.

Induced Fit Model Diagram

Enzymes are known for their specificity given their ability to change structure - modifications at the active site and formation of a transition state  - to bind substrates. This leads to an induced fit between enzyme and substrate(s).

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Some features of enzyme-substrate complexes include:

- Enzyme Specificity
- Substrate
- Active Site
- Activation energy

Features of the Enzyme-Substrate Complex

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Substrate

The location on an enzyme to which a substrate binds

Active site

Enzyme Specificity and the Induced Fit Model

A reaction's activation energy is the amount of energy needed to drive a chemical reaction. A certain threshold of energy must be met for reactions to happen. Catalysts like enzymes work to lower activation energy and thus increase the reaction rate.

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