"Explain" questions — IB DP Biology Higher Level (2023 syllabus)
305 questions · biology · View as Markdown
How to answer
WHAT + WHY. Every point paired with a because. Structure: X happens because Y. This causes Z because … Assessment Objective: AO2. Every "explain" answer on this spec is marked against exactly this pattern.
Sample questions
- Explain how cyclic photophosphorylation differs from non-cyclic photophosphorylation in terms of the electron pathway an…
- Explain how the fluid mosaic model accounts for the lateral movement of membrane proteins and discuss why this movement …
- Explain how natural selection acts on variation within a population to bring about evolutionary change over successive g…
- Explain how the structure of prokaryotic ribosomes differs from that of eukaryotic ribosomes, and outline the significan…
- Explain how the chemiosmotic gradient across the inner mitochondrial membrane is established and used to synthesise ATP …
- Explain how the structure of the nuclear envelope is related to its function in regulating communication between the nuc…
- Explain how the structure of a chloroplast is related to its function in photosynthesis.
- Explain how the ultrastructure of a myelinating Schwann cell is adapted for its function in the peripheral nervous syste…