Biology GCSE
Osmosis
What Osmosis means in Biology GCSE, as defined for Pearson Edexcel.
Definition of Osmosis
The net movement of water molecules from a region of higher water potential to a region of lower water potential through a partially permeable membrane.
Topics that use Osmosis
- Topic 6 – Plant structures and their functions (Pearson Edexcel GCSE)
Related terms
Using Osmosis 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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