Biology GCSE
Alveoli
What Alveoli means in Biology GCSE, as defined for Pearson Edexcel.
Definition of Alveoli
Tiny air sacs in the lungs adapted for efficient gas exchange.
Topics that use Alveoli
- Topic 8 – Exchange and transport in animals (Pearson Edexcel GCSE)
Related terms
Using Alveoli in the exam
Definition questions usually carry one or two marks, and examiners look for the precise wording. Write the definition from memory, check it against the version above, and then use the term in a longer answer on the same topic so it sticks.
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