Limitless Exam 14.4.1: Homeostasis
Cambridge IGCSE Biology 0610 | Past Paper Style Questions
Exam Structure: This assessment covers three key areas - definitions (Paper 2 style), mechanisms (Paper 4 extended response), and applications (Paper 6 practical understanding). Focus on using precise scientific terminology and providing complete explanations.
1
Define homeostasis.
[2 marks]
2
State TWO examples of homeostatic factors in the human body.
[2 marks]
3
Define negative feedback.
[2 marks]
4
What is meant by the term "set point" in homeostasis?
[1 mark]
5
State the role of receptors in homeostasis.
[1 mark]
Examiner Tips for Homeostasis Questions
- Common Trap: Students often confuse negative feedback with simply "going back to normal." You MUST explain that it's a mechanism that reverses the change.
- Keyword Precision: Use "set point" not "normal level," "receptors" not "sensors," and "coordination center" not "control center."
- Paper 4 Strategy: For "Explain" questions, use the receptor → coordinator → effector → response sequence to structure your answer.
- Link to Enzymes: When asked "why is X important," always link homeostasis to maintaining optimal enzyme activity and preventing denaturation.
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