B3.3.1 (HL)—Movement adaptations
Movement in organisms ranges from cellular locomotion by cilia or flagella to whole-body movement for feeding, escape, migration and reproduction.
- Syllabus
- First assessment 2025
- Objective
- B3.3.1
- Level
- HL
Exam analysis
Chance of appearing1%of analysed past papers
Latest appearanceMay 2013
Most common paperPaper3
Typical marks2
Scoring notes
- Common mistake
- Confusing movement of cells or body parts with whole-organism locomotion.
Recent exam appearances
May 2013Paper3 ["HL"] · TZ1F2(c)[ 2 ]B3.3.1 (HL)—Movement adaptations
Practice this objective
Coverage 2013–2013 · Updated 15 Jul 2026
Concept essentials
- Euglena use a flagellum for locomotion.
- Paramecium use cilia for locomotion.
- Locomotion means movement of an organism from place to place.
- Movement can support feeding, escape, migration and reproduction.