Topic 3.4.33 min read
3.4.3 Feedback Inhibition
Feedback Inhibition: The activity of almost every enzyme in a cell can be regulated by its product. When the activity of an enzyme is inhibited by its own product, it is called feedback inhibition. In simple words: Feedback inhibition is when the end product of a pathway inhibits an enzyme e
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3.4.3 Feedback Inhibition
What is it?
Feedback Inhibition: The activity of almost every enzyme in a cell can be regulated by its product. When the activity of an enzyme is inhibited by its own product, it is called feedback inhibition. In simple words: Feedback inhibition is when the end product of a pathway inhibits an enzyme e
In simple words
3.4.3 Feedback Inhibition is a core idea in this chapter. Learn the meaning first, then the main parts, then one clear example.
Recommended for Class 11
Full school-level explanation
Feedback Inhibition: The activity of almost every enzyme in a cell can be regulated by its product. When the activity of an enzyme is inhibited by its own product, it is called feedback inhibition. In simple words: Feedback inhibition is when the end product of a pathway inhibits an enzyme e
Why it matters
Understanding 3.4.3 Feedback Inhibition helps you answer definition, explanation, and application questions in this chapter.
Deeper understanding
Go deeper on 3.4.3 Feedback Inhibition: connect the definition to reasons, relationships, exceptions, and exam wording.
Exam focus
Key Point 1
Key Point 2
Key Point 3
Key Point 4
Exam focus
Quick revision
- Feedback Inhibition: The activity of almost every enzyme in a cell can be regulated by its product. When the activit
For long answers on 3.4.3 Feedback Inhibition: define clearly → explain the main parts → give one example → state one exam caution.
Exam Focus
Exam Focus
Important points
- Feedback Inhibition: The activity of almost every enzyme in a cell can be regulated by its product. When the activit
Common exam traps
- Do not write about 3.4.3 Feedback Inhibition without a clear definition.
- Do not mix this idea with a neighbouring chapter concept.
Long question structure
Definition → key parts → example → exam caution
Common Mistakes
Common Mistakes
- Mistake
Do not write about 3.4.3 Feedback Inhibition without a clear definition.
- Mistake
Do not mix this idea with a neighbouring chapter concept.
- Mistake
Do not list facts without showing how they connect.
Revision Zone
60-Second Revision
Quick cues from this topic — use them for last-minute revision.
Feedback Inhibition: The activity of almost every enzyme in a cell can be regulated by its product. When the activit
Feedback Inhibition: The activity of almost every enzyme in a cell can be regulated by its product. When the activity of an enzyme is inhibited by its own p
- Definition
- Feedback Inhibition: The activity of almost every enzyme in a cell can be regulated by its product. When the activity of an enzyme is inhibited by its own p
- Critical warning
- Do not write about 3.4.3 Feedback Inhibition without a clear definition.
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Exam Practice
Define
Q1. Define 3.4.3 Feedback Inhibition.
Explain
Q2. Explain the main ideas in 3.4.3 Feedback Inhibition.
Example
Q3. Give one clear example of 3.4.3 Feedback Inhibition and say why it fits.
Mistake
Q4. State one common mistake students make about 3.4.3 Feedback Inhibition.
Exam note
Q5. Write a short exam note on 3.4.3 Feedback Inhibition: definition, two points, one example.
Sources & References
School-standard facts for Matric and Intermediate. Original explanations — not copied from textbooks.