Master Water Potential and Osmosis fast ⚡ – clear explanations, supportive visuals, OCR-aligned.
You’ll cover
• What water potential is and how it determines the movement of water.
• The meaning of solute potential (Ψs), pressure potential (Ψp) and total water potential (Ψ).
• How water moves by osmosis across partially permeable membranes.
• What a water potential gradient is and how it drives net water movement.
• The effects of osmosis on animal and plant cells in hypotonic, isotonic and hypertonic solutions.
• How water moves through plant tissues via apoplast, symplast and vacuolar pathways.
• How osmosis can be investigated experimentally using plant tissue or artificial membranes.
What’s included
• Clear, labelled diagrams showing water potential gradients between cells.
• Visual tables showing the effects of osmosis on animal cells.
• Visual tables showing the effects of osmosis on plant cells, including turgidity and plasmolysis.
• Labelled diagrams of apoplast, symplast and vacuolar water pathways in plants.
• Structured tables summarising features of different water transport pathways.
• Practical-focused summaries of methods used to investigate osmosis.
• Concise spec reminders embedded alongside diagrams and tables to reinforce key OCR wording and expectations.
Format
Web-based textbook topic. Mobile/desktop friendly. Access with no time limit, updates included.





