Cambridge Cambridge O Level Biology 5090 · 9.1.4
Parts of the breathing system
- Code
- 9.1.4
- In
- 9.1 Human gas exchange
- Topic
- 9 Human gas exchange
- Course
- Cambridge O Level Biology 5090
- Board
- Cambridge
Grade boundaries·Cambridge command words
Codes and titles are read by a script from Cambridge's published specification and have not been checked by a person. What each point covers is in the specification itself: Cambridge’s specification.
Points in 9.1 Human gas exchange
- 9.1.1 Features of gas exchange surfaces
- 9.1.2 Composition of atmospheric air
- 9.1.3 Inspired and expired air
- 9.1.4 Parts of the breathing system
- 9.1.5 Alveoli and gas exchange
- 9.1.6 Ribs, intercostal muscles and diaphragm
- 9.1.7 Mechanism of ventilation
- 9.1.8 Physical activity and breathing
- 9.1.9 Goblet cells, cilia and mucus