0654.B13.3.02 — Explain the concept of homeostatic control by negative feedback with reference to a set point: past paper questions

Real questions on 0654.b13.3.02 — explain the concept of homeostatic control by negative feedback with reference to a set point

The newest 9 of 9 written questions. Open one to see it on the real paper.

1. 0654/41 · October/November 2025 · Q1b(ii)[1]

   Identify the type of homeostatic control shown in Fig. 1.2.

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2. 0654/41 · May/June 2023 · Q1a(iii)[1]

   State the term used to describe the homeostatic mechanism used to control internal body temperature.

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3. 0654/41 · October/November 2022 · Q10c(i)[2]

   Explain what is meant by the term negative feedback.

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4. 0654/41 · October/November 2022 · Q10c(ii)[1]

   State one other example of negative feedback.

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5. 0654/43 · May/June 2021 · Q7b(i)[3]

   Describe the role of arterioles and capillaries in temperature control when the body gets too hot. Include the name of the process in your answer.

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6. 0654/43 · May/June 2021 · Q7b(iii)[1]

   Name the term used to describe the mechanism used to return internal body temperature to a normal level.

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7. 0654/42 · February/March 2021 · Q4c[1]

   Name the term used to describe the mechanism that is used to return blood glucose concentrations to a normal level.

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8. 0654/43 · October/November 2019 · Q13b[1]

   State a term that can be used to describe the control of blood glucose concentration.

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9. 0654/43 · October/November 2019 · Q13c[2]

   The blood glucose concentration is controlled by hormones. Some of the body’s responses are controlled by the nervous system. Table 13.1 compares some of the features of the hormonal and nervous control systems. Table 13.1 type of control system hormonal method of information transfer chemical hormones nervous speed of...

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What examiners said

Negative feedback was correctly identified by some candidates. Homeostasis was a very common incorrect response.

— Examiner report, May/June 2023, 0654/41 Q1(a)(iii) (Cambridge)

Some candidates could explain the meaning of negative feedback as involving an action in opposition to a change returning a system back to its normal state. Others gave the definition of homeostasis instead as the maintenance of a constant internal environment. This was not regarded as adequate.

— Examiner report, October/November 2022, 0654/41 Q10(c)(i) (Cambridge)

Many candidates could give an example of negative feedback such as the control of blood glucose concentration. Others just suggested a mechanism of control, such as sweating.

— Examiner report, October/November 2022, 0654/41 Q10(c)(ii) (Cambridge)