DP Biology (first assessment 2025)
Question 23M.1A.HL.TZ1.28
| Date | May 2023 | Marks available | [Maximum mark: 1] | Reference code | 23M.1A.HL.TZ1.28 |
| Level | HL | Paper | 1A | Time zone | TZ1 |
| Command term | Question number | 28 | Adapted from | N/A |
28.
[Maximum mark: 1]
23M.1A.HL.TZ1.28
What are functions of type I and type II alveolar pneumocytes?
| Type I | Type II | |
| A. | Produce surfactant | Exchange CO2 |
| B. | Exchange CO2 | Exchange CO2 |
| C. | Phagocytic cells | Protective epithelial cells |
| D. | Carry out gas exchange | Produce surfactant |
[1]
Markscheme
D