BI-107
Lock-and-key model
Biology · Secondary 3 · Medium · Lock-and-key model
Which statement best describes how the lock-and-key model explains enzyme specificity?
- Any substrate can fit into any enzyme’s active site.
- The active site changes randomly until a substrate fits.
- Only a substrate with a complementary shape fits the active site.
- The substrate changes shape to fit every active site.
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