plumiHomeostasis and thermoregulation: Edexcel International A Level Biology questions
Edexcel International A Level Biology past-paper questions on 7.4.2 Homeostasis and thermoregulation, 2019–2025, with mark schemes and examiner’s reports where available.
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Q5(b)(ii)
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All 7 questions on Homeostasis and thermoregulation, as a list
- October 2024, Unit 5, Q5(b)(ii) (3 marks): When a human exercises, the metabolic rate is increased and heat energy is released. Describe how the body temperature of a human is maintained at 37°C during e
- January 2024, Unit 5, Q7(a) (4 marks): The resting body temperature of a kangaroo rat is 37 °C. During exercise the body temperature is maintained between 38.5 °C and 40 °C. Explain how the body temp
- October 2023, Unit 5, Q7(c) (3 marks): The hypothalamus is involved in maintaining a steady internal temperature in the ostrich. Describe the role of the hypothalamus in maintaining a steady internal
- October 2022, Unit 5, Q8(g) (2 marks): Suggest the role of TRPV1 in maintaining core body temperature (paragraph 9). (2)
- October 2021, Unit 5, Q1(c) (2 marks): The graph shows the rate of heat loss at rest and during exercise. Exercise started Rate of heat loss Time Comment on the rate of heat loss during exercise. (2)
- October 2021, Unit 5, Q4(b) (1 mark): Which statement about the homeostasis of thermoregulation when the human body temperature is 37 °C is correct? (1) A thermoregulation is no longer required B th
- January 2021, Unit 5, Q3(c) (3 marks): Some seizures can result in an increase in body temperature. Suggest how a seizure in part of the brain could lead to an increase in body temperature. (3)
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