CAIE A-Level Biology AS 9.1.3 Gas Exchange Image Recognition Questions
Interpret gas-exchange images and identify structures and adaptations using evidence from each question and mark scheme.
- Syllabus
- 2028–2030
- Course
- Biology 9700
- Level
- AS
Exam points
- Interpret gas-exchange images and identify structures and adaptations.
CAIE A-Level Biology AS 9.1.3 Gas Exchange Image Recognition Questions question 1
The photomicrograph shows a section through part of the human gas exchange system.
Which structure is shown?
A
alveolus
B
bronchiole
C
bronchus
D
trachea
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