IB Biology HL C4.2.2 Sunlight As Principal Energy Source Topic Practice

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A Unity and Diversity

B Form and Function

C Interaction and Interdependence

C1.1 Enzymes and metabolism

C1.2 Cell respiration

C1.3 Photosynthesis

C2.1 Chemical signalling [HL only]

C2.2 Neural signalling

C3.1 Integration of body systems

C3.2 Defence against disease

C4.1 Populations and communities

C4.2 Transfers of energy and matter

C4.2.1—Ecosystems as open systems

C4.2.2—Sunlight as principal energy source

C4.2.3—Chemical energy flow

C4.2.4—Food chains and food webs

C4.2.5—Supply to decomposers

C4.2.6—Autotrophs as self-feeders

C4.2.7—Energy sources

C4.2.8—Heterotrophs

C4.2.9—Energy release

C4.2.10—Trophic levels

C4.2.11—Energy pyramids

C4.2.12—Energy reductions

C4.2.13—Heat loss

C4.2.14—Restrictions on trophic levels

C4.2.15—Primary production

C4.2.16—Secondary production

C4.2.17—Carbon cycle diagrams

C4.2.18—Carbon sinks and sources

C4.2.19—CO₂ release during combustion

C4.2.20—Keeling Curve analysis

C4.2.21—Dependence between respiration and photosynthesis

C4.2.22—Recycling of all chemical elements

D Continuity and Change

IB/Biology/HL//Question Bank/C Interaction and Interdependence/C4.2 Transfers of energy and matter/C4.2.2—Sunlight as principal energy source

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