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2.2 Animal tissues, organs and organ systems

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Question 58
F

During an asthma attack the muscles around the bronchi contract and the lining of the bronchi swells, so the airways become much narrower. The alveoli themselves are not damaged.

a.

Suggest why a person having an asthma attack cannot get enough oxygen into their blood.

[2]
b.

An inhaler contains a drug that relaxes the muscles around the bronchi.

Explain how this drug relieves the symptoms of an asthma attack.

[2]
c.

Suggest why a person with asthma has a normal rate of gas exchange between attacks.

[1]
Markscheme

2.2 Animal tissues, organs and organ systems Questions

  1. GCSE
  2. /Biology
  3. /2.2 Animal tissues, organs and organ systems

179 exam-style questions on AQA GCSE Biology 2.2 Animal tissues, organs and organ systems, covering 2.2.1 The human digestive system, 2.2.2 The heart and blood vessels, 2.2.3 Blood, 2.2.4 Coronary heart disease: a non-communicable disease, 2.2.5 Health issues, 2.2.6 The effect of lifestyle on some non-communicable diseases, and 2.2.7 Cancer. Each one has a worked solution and a mark scheme showing where the marks go.

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