CCEA A-level Biology: units, practical assessment and 2027 dates

CCEA A-level Biology: the specification

CCEA first taught this GCE in September 2016, with AS awards from 2017 and A level awards from 2018 (specification version 2, April 2017). The AS is 40% of the A level. Theory papers are structured questions plus an essay, and each practical unit pairs a written paper with an internal assessment that teachers mark and CCEA moderates.

CCEA A-level Biology units

All three assessment objectives are tested in every unit: knowledge, application in theory and practice with both kinds of data, and analysis and evaluation. Because the AS 3 and A2 3 papers are short, the essay-style theory papers carry most of the grade. CCEA morning papers normally start at 9.15am. Dates are from CCEA's final GCE timetable; see the CCEA A-level timetable 2027. Hardy-Weinberg calculations and chi-squared tests appear in the content, so keep a calculator ready.

Worked example in CCEA Biology style

Hardy-Weinberg. In a population the frequency of the dominant allele A is 0.7, so the recessive allele a has frequency 0.3. The expected genotype frequencies are:

So 9 in 100 individuals are homozygous recessive and 42 in 100 are heterozygous carriers. The principle only holds when the population is large, mating is random and there is no migration, mutation or selection.

CCEA A-level Biology grades

The four theory papers and two practical units feed one total of uniform marks. A level grades are A* to E, AS grades A to E, and the A* needs an A overall plus 90% of the maximum A2 uniform marks. Because the two A2 practical and theory units are 36% together, a weak practical unit can cost the A*. A-level grades explained explains how this compares across boards.

Use the daily papers as short timed mocks for CCEA A-level Biology

Your two tracks are A-level Biology Year 1 and Year 2. Each daily paper is a short 8-question mock of 25 to 35 marks, not a CCEA paper, and there is no essay.

• What it covers well: enzymes, membranes, DNA and protein synthesis, gas exchange, transport, photosynthesis and respiration, homeostasis, inheritance and Hardy-Weinberg, evolution and ecosystems.
• What it does not cover: the practical units AS 3 and A2 3, and the essay in each theory unit. Practise essays from CCEA past papers.

Do a daily paper timed, then write one CCEA-style essay a week from a past paper, because the essay is what a short mock cannot give you.

Exam answers

Official answers are the board's to publish, not ours. The daily paper has its own answers and a worked mark scheme, shown after you mark it.

Common mistakes in CCEA A-level Biology

• Skipping the essay. Every theory paper includes one.
• Ignoring the practical units. They are 22% of the A level.
• Using "it" in explanations. Name the molecule or structure.
• Forgetting the Hardy-Weinberg conditions. State them if asked.

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