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IB Biology A1.1 Water Question Bank

Water’s polarity and hydrogen bonding create solvent, thermal, cohesive and adhesive properties that support metabolism, transport, cooling and aquatic life.

Syllabus
First assessment 2025
Topic
ib_null_biology_001_001
Level
All levels

Learning objectives

Study the full topic, or open one objective for a focused lesson.

Exam analysis

An aggregate view of how the complete A1.1 Water topic appears across past papers.

Topic frequencyLOW57 questions across 50 papers
Latest appearanceNovember 2025
Most common paperPaper2

Most tested objectives

  1. A1.1.2—Hydrogen bonds in water28 questions
  2. A1.1.3—Cohesion of water molecules11 questions
  3. A1.1.5—Solvent properties of water8 questions

Common question formats

  • Definition or recall
  • Diagram interpretation
  • Process explanation
  • Comparison
  • Data analysis
  • Structured response

Recent paper appearances

November 2025Paper27(a)[ 4 ]A1.1.2—Hydrogen bonds in water
May 2024Paper26(a)[ 3 ]A1.1.2—Hydrogen bonds in water
November 2023Paper17[ 1 ]A1.1.3—Cohesion of water molecules
May 2022Paper16[ 1 ]A1.1.2—Hydrogen bonds in water
November 2021Paper17[ 1 ]A1.1.6—Physical properties of water for aquatic animals
Practice this topic

5 original exam-style questions based on the patterns above.

Coverage 2010–2025 · Updated 12 Jul 2026

Study checklistA1.1 Water