Learning objective

Clarify how homeostatic regulation operates through negative feedback, including the idea of a set point.

Read the explanation, check the common trap, then practise with flashcards and questions.

Exam focus

Cambridge IGCSE BiologyCoordination and responseSupplement content

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Quick explanation

This point belongs to Homeostasis, especially Homeostasis outcomes.
You need to be able to clarify how homeostatic regulation operates through negative feedback, including the idea of a set point.
The key ideas to know are Explain.
Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

Explain

Why it matters

This objective helps connect Homeostasis outcomes to exam-style questions, flashcards, and revision notes for Homeostasis.

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Flashcards10 linked cards

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Practice Questions7 linked questions

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Paper 4Theory (Extended)4 marks

Description

Negative feedback is a control mechanism that helps maintain conditions at a set point by reversing any changes detected.

a
State what is meant by the term 'set point' in homeostasis?
Your answer
Aim for approximately 1 distinct marking point.
[1]
b
Explain how negative feedback helps maintain homeostasis.
Your answer
Aim for approximately 3 distinct marking points.
[3]

Revision notestopic notes

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