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7.3 Homeostasis and thermoregulation

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123
Question 2
F

The Figure shows a section through human skin.

Figure

image

a.

Name layer A and structure B.

[2]
b.

Structure C contracts when the body is cold.

Describe what happens to the hair when structure C contracts.

[1]
c.

Name the part of the brain that monitors the temperature of the blood.

[1]
d.

State what is meant by homeostasis.

[1]
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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