D2.3 Water potential
Water potential explains osmosis, solute effects, plant tissue changes, cell swelling, plasmolysis and isotonic medical conditions in living systems and cells.
- Syllabus
- First assessment 2025
- Topic
- D2.3
- Level
- SL
What you’ll learn
7 learning objectivesChoose one objective for a focused lesson, or study the complete topic.
Exam analysis
An aggregate view of how the complete D2.3 Water potential appears across past papers.
Chance of appearing13%of analysed past papers
Latest appearanceNovember 2025
Most common paperPaper3
Most tested objectives
- D2.3.4—Changes in plant tissue10 questions
- D2.3.5—Effects on cells without wall9 questions
- D2.3.2—Water movement4 questions
Common question formats
- Definition or recall
- Process explanation
- Calculation
- Data analysis
- Diagram interpretation
Exam question appearances
November 2025Paper1A ["SL"] · TZ112[ 1 ]D2.3.5—Effects on cells without wall
May 2025Paper2 ["SL"] · TZ16(c)[ 7 ]D2.3.6—Effects on cells with wall
May 2025Paper1A ["SL"] · TZ112[ 1 ]D2.3.5—Effects on cells without wall
November 2024Paper2 ["SL"] · TZ22(b)[ 1 ]D2.3.5—Effects on cells without wall
November 2024Paper2 ["SL"] · TZ22(a)[ 2 ]D2.3.5—Effects on cells without wall
Coverage 2015–2025 · Updated 16 Jul 2026