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7.3 Homeostasis and thermoregulation

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Question 23
H

A person has an unusually high core body temperature in cool surroundings. Sweating and vasodilation increase.

Why would continuing both responses at the same high level after core temperature has returned to normal be a problem?

[1]
A

Heat loss could remain greater than heat production, lowering core temperature too far.

B

Heat production could remain greater than heat loss, lowering core temperature too far.

C

Heat loss could remain greater than heat production, raising core temperature too far.

D

Heat production could remain greater than heat loss, raising core temperature too far.

Markscheme

7.3 Homeostasis and thermoregulation Questions

  1. GCSE
  2. /Biology
  3. /7.3 Homeostasis and thermoregulation

44 exam-style questions on Edexcel GCSE Biology 7.3 Homeostasis and thermoregulation, covering 7.3.1 Importance of a constant internal environment, 7.3.2 Importance of homeostasis, 7.3.3a Thermoregulation via the skin and hypothalamus, and 7.3.3b Vasoconstriction and vasodilation in thermoregulation. Each one has a worked solution and a mark scheme showing where the marks go.

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