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CAIE A-Level Biology AS 9.1.6 Airway and Alveolar Tissue Functions Questions

Explain airway and alveolar tissue adaptations for gas exchange and protection using evidence from each question and mark scheme.

Syllabus
2028–2030
Course
Biology 9700
Level
AS

Exam points

  • Explain how airway and alveolar tissues are adapted for gas exchange and protection.

CAIE A-Level Biology AS 9.1.6 Airway and Alveolar Tissue Functions Questions question 1

[Maximum number: 1]

The plan diagram shows a cross-section of a trachea.
Which labelled tissue prevents the trachea from collapsing?

Figure for Question CAIE A-Level Biology AS 9.1.6 Airway and Alveolar Tissue Functions Questions question 1 — CAIE A-Level Biology AS
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