Osmosis
What Osmosis means in Biology A (Salters-Nuffield) A-Level, as defined for Pearson Edexcel.
Definition of Osmosis
Check what you remember
Read the wording for your board, then hide it and explain Osmosis in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: Pearson Edexcel
The net movement of free water molecules through a partially permeable membrane from a region of higher water concentration to a region of lower water concentration.
Topics that use Osmosis
- Topic 2: Genes and Health (Pearson Edexcel A-Level)
Related terms
Using Osmosis in the exam
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