DP Biology (first assessment 2025)

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Question 23M.1A.HL.TZ1.22

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Date May 2023 Marks available [Maximum mark: 1] Reference code 23M.1A.HL.TZ1.22
Level HL Paper 1A Time zone TZ1
Command term Question number 22 Adapted from N/A
22.
[Maximum mark: 1]
23M.1A.HL.TZ1.22

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

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