Edexcel International GCSE (9–1) Science (Double Award) 4SD0 · B-2g

Gas exchange

Code: B-2g
In: B-2 Structure and functions in living organisms
Topic: B Biology content
Course: International GCSE (9–1) Science (Double Award) 4SD0
Board: Edexcel

Codes and titles are read by a script from Edexcel's published specification and have not been checked by a person. What each point covers is in the specification itself: Edexcel’s specification.

Points under B-2g

B-2.46 Structure of the thorax
B-2.47 Intercostal muscles, diaphragm and ventilation
B-2.48 Adaptations of alveoli for gas exchange
B-2.49 Effects of smoking
B-2.50 Practical: breathing and exercise

Points in B-2 Structure and functions in living organisms

B-2a Level of organisation
B-2b Cell structure
B-2c Biological molecules
B-2d Movement of substances into and out of cells
B-2e Nutrition
B-2f Respiration
B-2g Gas exchange
B-2h Transport
B-2i Excretion
B-2j Co-ordination and response