| Date | May 2017 | Marks available | 1 | Reference code | 17M.1.SL.TZ2.28 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Question number | 28 | Adapted from | N/A |
Question
Where does gas exchange occur in the lungs?
A. In type I pneumocytes
B. In the bronchioles
C. In the veins surrounding the alveoli
D. In the surfactants
Markscheme
A
Examiners report
[N/A]
Syllabus sections
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