CourseCourseQuestionQuestionDocumentDocument
IB Biology
A Unity and Diversity
B Form and Function
B1.1 Carbohydrates and lipids
B1.2 Proteins
B2.1 Membranes and membrane transport
B2.2 Organelles and compartmentalization
B2.3 Cell specialization
B3.1 Gas exchange
B3.2 Transport
B3.3 Muscle and motility [HL only]
B3.3.1 (HL)—Movement adaptations
B3.3.2 (HL)—Sliding filament model
B3.3.3 (HL)—Titin and antagonistic muscles
B3.3.4 (HL)—Motor units
B3.3.5 (HL)—Skeletons as anchorage and levers
B3.3.6 (HL)—Synovial joint movement
B3.3.7 (HL)—Range of motion
B3.3.8 (HL)—Intercostal muscles
B3.3.9 (HL)—Reasons for locomotion
B3.3.10 (HL)—Swimming adaptations in marine mammals
B4.1 Adaptation to environment
B4.2 Ecological niches
C Interaction and Interdependence
D Continuity and Change
IB/Biology/HL//Concept/B Form and Function/B3.3 Muscle and motility [HL only]/B3.3.4 (HL)—Motor units

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