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Principles of homeostasis: OCR A‑Level Biology A questions

OCR A-Level Biology A past-paper questions on 5.1.1.2 Principles of homeostasis, 2016–2025, with mark schemes and examiner’s reports where available.

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1,983 questions

  1. Q20(c)(i)

    June 2023 · Paper 1

    2 marks5.1.1.3 Temperature control5.1.1.2 Principles of homeostasis
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  2. Q11

    June 2022 · Paper 1

    1 mark5.1.1.2 Principles of homeostasis
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  3. Q2(a)(ii)

    June 2019 · Paper 3

    4 marks5.1.1.2 Principles of homeostasis5.1.1.3 Temperature control
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All 3 questions on Principles of homeostasis, as a list
  1. June 2023, Paper 1, Q20(c)(i) (2 marks): Suggest the consequences of an increase in the thermogenic set point. [2]
  2. June 2022, Paper 1, Q11 (1 mark): Which statement describes an aspect of homeostasis? A Effectors detect a change and cause release of hormones that bind to target cells. B Homeostasis maintains
  3. June 2019, Paper 3, Q2(a)(ii) (4 marks): In humans, when core body temperature falls below 35 °C, positive feedback causes this decrease in core body temperature to continue. This process is known as h

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