Beyond GCSE: Induced Fit Model
This higher tier covers Beyond GCSE: Induced Fit Model within Enzymes in Digestion for GCSE Biology. Enzyme structure and function, digestive enzymes, factors affecting enzyme activity, lock and key model, and practical investigations It is section 4 of 19 in this topic. This section is most useful once the core foundation idea is secure, because it adds the detail that pushes answers higher.
Topic position
Section 4 of 19
Practice
25 questions
Recall
25 flashcards
Beyond GCSE: Induced Fit Model
Note: The induced fit model is covered at A-level Biology, not required for GCSE.
Induced Fit Model (Modern, A-level):
- Enzyme active site is flexible and changes shape slightly when substrate binds
- Substrate binding induces a conformational change in the active site
- Better explains enzyme specificity and regulation at molecular level
- Accounts for allosteric control and competitive inhibition
The induced fit model is now accepted as more accurate, but for GCSE you only need the lock-and-key model.
Keep building this topic
Read this section alongside the surrounding pages in Enzymes in Digestion. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Enzymes in Digestion
What are enzymes?
Explain the effect of increasing temperature on enzyme activity.
Quick Recall Flashcards
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