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
B3.1.1—Gas exchange as vital function
B3.1.2—Properties of gas-exchange surfaces
B3.1.3—Maintaining concentration gradients
B3.1.4—Mammalian lung adaptations
B3.1.5—Lung ventilation
B3.1.6—Lung volume measurements
B3.1.7—Leaf gas exchange adaptations
B3.1.8—Leaf tissue distribution
B3.1.9—Transpiration
B3.1.10—Stomatal density
B3.2 Transport
B4.1 Adaptation to environment
B4.2 Ecological niches
C Interaction and Interdependence
D Continuity and Change
IB/Biology/SL//Concept/B Form and Function/B3.1 Gas exchange/B3.1.2—Properties of gas-exchange surfaces

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