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IB Biology SL Form and Function Concepts

Form and Function connects biological structures to the processes they enable, from molecules and membranes to tissues, organs, transport systems and ecological adaptations.

Syllabus
First assessment 2025
Section
—
Level
SL

Exam analysis

Published Concept evidence in Form and Function repeatedly asks students to connect structure with function across molecules, membranes, cells and exchange systems. The strongest pattern is explaining how specific features enable transport, support, movement, regulation or adaptation.

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