B3.2 Transport
Transport systems move materials through animal blood vessels, plant xylem and phloem, and heart-driven circuits using specialised structures and pressure gradients.
- Syllabus
- First assessment 2025
- Topic
- B3.2
- Level
- SL
What you’ll learn
10 learning objectivesChoose one objective for a focused lesson, or study the complete topic.
Exam analysis
An aggregate view of how the complete B3.2 Transport appears across past papers.
Chance of appearing42%of analysed past papers
Latest appearanceNovember 2025
Most common paperPaper1
Most tested objectives
- B3.2.16 (HL)—Cardiac cycle stages18 questions
- B3.2.15 (HL)—Mammalian heart adaptations12 questions
- B3.2.2—Artery and vein structure11 questions
Common question formats
- Definition or recall
- Process explanation
- Structured response
- Diagram interpretation
- Calculation
- Graph interpretation
- Experimental design
- Comparison
Exam question appearances
November 2025Paper2 ["SL"] · TZ37(c)[ 7 ]B3.2.7—Water transport in plants
November 2025Paper1A ["SL"] · TZ115[ 1 ]B3.2.5—Vein adaptations
November 2025Paper1A ["SL"] · TZ315[ 1 ]B3.2.10—Root tissue distribution
May 2025Paper2 ["SL"] · TZ37(c)[ 7 ]B3.2.2—Artery and vein structure
May 2025Paper2 ["SL"] · TZ25(b)[ 3 ]B3.2.7—Water transport in plants
Coverage 2010–2025 · Updated 15 Jul 2026