Key term for Edexcel GCSE Biology, used in Exchange Surfaces.
Tiny air sacs in the lungs where gas exchange occurs, providing a large surface area for diffusion.
Alveoli appears in Edexcel GCSE Biology revision content for Exchange and Transport in Animals, especially Exchange Surfaces and Factors Affecting Diffusion.
Create a free account to access Edexcel GCSE Biology revision notes, track progress, and practise related key terms.
