Biology A-Level Resources

This revision guide details common WJEC examination command words, their official definitions, and the specific responses expected from students. It features an itemized breakdown of key terms—such as Analyse, Calculate, Describe, Explain, and Evaluate—alongside guidance on how to fulfill each question requirement. Additionally, the resource highlights key differences between easily confused command words (e.g., Describe vs. Explain and Compare vs. Contrast) to help students avoid common mark deductions and properly structure their exam answers.

A clear, exam‑aligned breakdown of every WJEC A2 Biology Unit 4 topic - a streamlined checklist that shows precisely what you need to revise, from human and plant reproduction to genetics, evolution, genome applications and immunity, plus all required practicals.

A clear, exam‑aligned breakdown of every WJEC A2 Biology Unit 3 topic - a streamlined checklist that shows precisely what you need to revise, from ATP and photosynthesis to respiration, microbiology, ecosystems, human impact, kidney function and the nervous system, plus all required practicals.

A clear, exam‑aligned breakdown of every WJEC AS Biology Unit 2 topic - a streamlined checklist that shows precisely what you need to revise, from biodiversity and evolution to gas exchange, transport systems and nutrition plus all required practicals.

A clear, exam‑aligned breakdown of every WJEC AS Biology Unit 1 topic - a streamlined checklist that shows precisely what you need to revise, from biochemistry and cell structure to enzymes, membranes, DNA and cell division, plus all required practicals.