DP Biology (first assessment 2025)

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Question 21N.2.SL.TZ0.c

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Date November 2021 Marks available [Maximum mark: 1] Reference code 21N.2.SL.TZ0.c
Level SL Paper 2 Time zone TZ0
Command term Outline Question number c Adapted from N/A
c.
[Maximum mark: 1]
21N.2.SL.TZ0.c

Outline the action taken by the diaphragm during inhalation.

[1]

Markscheme

contracts/flattens/becomes less domed/increases volume of thorax;

Examiners report

80 % of candidates knew that the diaphragm contracts than relaxes during inhalation, or stated that it flattens rather than moves upwards.

Syllabus sections