Oxford AQA IGCSE · CORE Biology (9221)

Breathing: Practice Questions

4 multiple-choice questions marked as you go, and 3 written questions with worked solutions. All on Breathing.

7 questions16 marksFree, no account
Question 1
1 mark

During the process of inhalation, which sequence of mechanical changes correctly leads to air entering the lungs?

Question 2
1 mark

Which of the following describes the mechanism of inhalation in the human respiratory system?

Question 3
1 mark

During inhalation, several mechanical changes occur in the thorax to allow air to enter the lungs. Which of the following sequences correctly describes this process?

Question 4
1 mark

Which of the following describes the correct mechanism and consequence of inhalation in the human respiratory system?

Question 5
3 marks

In the human respiratory system, describe the specific actions of the intercostal muscles and the diaphragm during the process of exhalation.

Write your answer out first, then check it against the worked solution.

Question 6
6 marks

The process of inhalation requires specific changes in the thorax. Explain how the intercostal muscles and the diaphragm work together to change the volume and pressure of the thorax, and state how this leads to air entering the lungs.

Write your answer out first, then check it against the worked solution.

Question 7
3 marks

In the human respiratory system, the process of exhalation is essential for removing carbon dioxide. Explain the mechanism by which diaphragm and intercostal muscles decrease the volume of the thorax to force air out of the lungs.

Write your answer out first, then check it against the worked solution.

* The content provided by thinka is generated by AI and may not always be accurate or up-to-date. Please use it as a supplementary resource and verify with official materials.

You've seen the model answer. Now get yours marked.

This page can show you how a good answer looks. It cannot tell you what your answer was missing. thinka marks your written work against the real mark scheme in about 15 seconds.

Get My Answers MarkedBack to the notes

Want more questions like these? Get a fresh set on this topic, marked as you go.

Practise More