Negative Feedback
This key facts covers Negative Feedback within Temperature Regulation for GCSE Biology. Topic 5: Temperature Regulation It is section 3 of 13 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 3 of 13
Practice
12 questions
Recall
12 flashcards
Negative Feedback
Most homeostatic systems work by negative feedback:
- Receptor detects a change (stimulus)
- Information sent to coordination centre (brain, spinal cord, pancreas)
- Effector (muscle or gland) produces a response
- Response counteracts the original change
- Levels return to normal
It's called "negative" because the response is OPPOSITE to the change!
The Central Heating Analogy
Negative feedback works like your home thermostat. Set it to 20°C. If the room gets too cold, the heating turns ON. If it gets too hot, the heating turns OFF. The response always OPPOSES the change to bring things back to normal!
Keep building this topic
Read this section alongside the surrounding pages in Temperature Regulation. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Temperature Regulation
What is the normal core body temperature in humans?
Explain how sweating helps to reduce body temperature.
Quick Recall Flashcards
12 questions on Temperature Regulation — practise free
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