DP Biology (first assessment 2025)

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Question 22N.1A.HL.TZ0.22

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Date November 2022 Marks available [Maximum mark: 1] Reference code 22N.1A.HL.TZ0.22
Level HL Paper 1A Time zone TZ0
Command term Question number 22 Adapted from N/A
22.
[Maximum mark: 1]
22N.1A.HL.TZ0.22

The diagram shows a section through an alveolus.

[Source: Bergman, Ronald A., Ph.D., and D'Alessandro, Michael P., M.D. Pulmonary alveoli, “Anatomy Atlases”. Available online: http://www.anatomyatlases.org/ [Accessed 02/01/2023].]

 

What are the functions of the following labelled structures?

[1]

Markscheme

C

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