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CCEA A-Level Biology guides, written in exam language
Every article here is written against the CCEA GCE Biology specification: the mechanisms examiners ask about, the command words that decide the shape of your answer, and the marks students drop most often. Start with the specification hub if you want the units, or the student forums if you have a question of your own.
A six-week CCEA Biology revision plan that fits around school
Six weeks is enough for CCEA Biology if the hours go on retrieval and past papers rather than rewriting notes. Here is a schedule that assumes you are still in school and have other subjects.
Read the guideCCEA Biology practical skills: AS 3 and A2 3 without guesswork
Variables, reliability, precision and statistics for the CCEA practical-skills papers, plus how to write evaluations that name a specific improvement.
21 August 2026Genetic crosses and chi-squared in CCEA A2 2
Set out monohybrid, dihybrid and sex-linked crosses in the layout CCEA credits, then run a chi-squared test and write a conclusion that earns the final mark.
18 August 2026Photosynthesis and respiration: the links CCEA examiners test
ATP, reduced NADP, the Calvin cycle and the electron transport chain — how CCEA A2 questions connect the two processes, and the answers that score.
15 August 2026The loop of Henle explained for CCEA A2 Biology
The counter-current multiplier, water potential in the medulla and why long loops matter — the CCEA A2 1 kidney content explained in exam language.
12 August 2026How to mark your own CCEA Biology answers honestly
Self-marking is where past papers turn into grades. A practical routine for using CCEA mark schemes without flattering yourself into a lower grade.
9 August 2026CCEA Biology command words: what each one is really asking
Describe, explain, compare, suggest, evaluate — what each CCEA A-Level Biology command word requires, with examples of answers that gain and lose marks.
6 August 2026How to answer CCEA Biology 6-mark QWC questions
A step-by-step method for CCEA A-Level Biology extended-response questions: how QWC is credited, how to plan in 90 seconds, and a worked immune response answer.
4 August 2026