BI-1389
Lock-and-key model
Biology · Secondary 4 · Easy · Lock-and-key model
In the lock-and-key model of enzyme action, which statement correctly describes the role of the active site?
- It changes shape permanently to fit any substrate.
- It has a fixed shape that is complementary to its specific substrate.
- It provides energy so the reaction can start.
- It is used up when the product is formed.
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