O-LevelBiologyRespiration5090/11 · Oct/Nov 2012 · Q181 Mark

The diagram illustrates changes in air pressure taking place inside the lungs during a complete cycle of breathing. Which position on the graph corresponds to the point at which the ribs are beginning to be lowered?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

✓ Correct answer

A: A

Oracle Prep sorts past-paper questions by topic, so you can drill Respiration and see which topics are most likely to come up next.

Topic: Respiration, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, Oct/Nov 2012 Paper 1 Variant 1, question 18.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content