"Explain" questions — AQA A-Level Biology (7402)
164 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
- A student states: 'Every cell in a human body contains the same DNA, yet cells look and behave very differently from one…
- A student looks at a plant cell and an animal cell under a microscope. The student says: 'Both cells must be making prot…
- Explain why maintaining high biodiversity within a community is important for the long-term stability of that community.…
- Explain why a change in the base sequence of a gene may not always result in a change in the amino acid sequence of the …
- Explain why the rate of photosynthesis in a plant increases as light intensity increases, but only up to a certain point…
- Explain why farmers who rear livestock often use indoor housing and controlled feeding programmes to increase the effici…
- A mutation occurs in a gene, changing one DNA base. Explain how this mutation could result in a non-functional protein b…
- Explain how the structure of the alveoli is adapted to allow efficient gas exchange in the lungs.