Gas exchange — Science definition
Defined in 2 courses:
- Diffusion of oxygen into the blood and carbon dioxide out of it across a thin, moist surface with a maintained concentration difference. (Life Science & Scientific Inquiry)
- Movement of gases across an exchange surface. (Life Science: Biology)
Where it is taught
- Circulatory & Respiratory Systems — Body Organization, Transport & Movement, Life Science & Scientific Inquiry, Grade 7
- Interacting Body Systems — Body Systems, Signals & Homeostasis, Life Science: Biology, Grade 10
In use
Gas exchange is the chemical traffic that ventilation serves: oxygen crossing from air into blood, carbon dioxide crossing the other way.
Circulatory & Respiratory Systems