GCSE Biology – Osmosis (2026/27 exams)

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*** WHAT’S COVERED ***
1. Recap of Diffusion.
2. Introduction to Osmosis.
3. Understanding Water Concentration.
* How the proportion of water to solutes determines concentration.
4. Osmosis in Cells.
* Application of osmosis principles to cell membranes.
* How water moves into or out of cells based on surrounding water concentration.

*** EXAM BOARD INFO ***
AQA – Suitable for everyone
IGCSE Edexcel – Suitable for everyone
Edexcel – Suitable for everyone
OCR 21st Century – Suitable for everyone
OCR Gateway – Suitable for everyone
CIE – Suitable for everyone

*** CHAPTERS ***
0:00 Intro
0:21 Diffusion Recap
0:52 What is Osmosis?
1:17 Water Concentration
2:44 Osmosis in Cells

*** PLAYLISTS ***

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