AQA GCSE Biology (8461): papers, topics and grade boundaries

AQA GCSE Biology papers at a glance

The specification is AQA GCSE Biology 8461 (version 1.0, April 2016). Both papers are offered at Foundation and Higher tier and you sit both at the same tier. Questions are multiple choice, structured, closed short answer and open response. The June 2023 paper cover lists a ruler and a scientific calculator, and says you are expected to use the calculator where appropriate.

What each AQA GCSE Biology paper covers

Paper 1: cells, organs, disease and energy

• Cell biology: eukaryotic and prokaryotic cells, microscopy and magnification, mitosis and the cell cycle, stem cells, diffusion, osmosis and active transport.
• Organisation: enzymes and digestion, the heart, blood vessels and blood, health and non-communicable disease, plant tissues and transport.
• Infection and response: communicable diseases, how the body defends itself, vaccination, antibiotics, and developing drugs.
• Bioenergetics: photosynthesis, limiting factors, and aerobic and anaerobic respiration.

Paper 2: control, inheritance and ecosystems

• Homeostasis and response: the nervous system, hormones, blood glucose and diabetes, the menstrual cycle and contraception, and plant hormones.
• Inheritance, variation and evolution: DNA, meiosis, Punnett squares, genetic disorders, natural selection, selective breeding, genetic engineering and classification.
• Ecology: adaptations, food chains, material cycles, biodiversity, and human impact on the environment.

AQA GCSE Biology required practicals

There are ten required practical activities, assessed through the written papers. They are: use a light microscope to observe, draw and label cells; the effect of antiseptics or antibiotics on bacterial growth; osmosis in plant tissue with salt or sugar solutions; food tests for carbohydrates, lipids and proteins; the effect of pH on amylase; the effect of light intensity on photosynthesis; reaction time; plant growth responses to light or gravity; measuring the population size of a species in a habitat; and how temperature changes the rate at which fresh milk goes off. Analyse results in the Practical Data Lab.

Worked examples in AQA style

Cells: magnification

A student draws a plant cell 45 mm wide. The drawing is made at a magnification of ×300. What is the real width of the cell, in micrometres?

Convert millimetres to micrometres by multiplying by 1000. Check the same calculation in the Magnification Calculator.

Exchange: surface area to volume ratio

Compare a cube of side 2 cm with a cube of side 4 cm. The surface area is 6 × side² and the volume is side³:

The bigger cube has the smaller ratio. That is why large organisms need exchange surfaces and a transport system, while a single cell can rely on diffusion.

Inheritance (Higher): carriers

A couple who both carry the recessive allele for cystic fibrosis have the genotypes Ff × Ff. The Punnett square gives FF, Ff, Ff and ff, so the probability that a child has cystic fibrosis is 1 in 4. For two children both to have it:

Each birth is independent, so multiply the probabilities. Practise surface area to volume in our Cell Biology course, then press Mark to check your answer in the course:

AQA GCSE Biology grade boundaries

These are AQA's raw boundaries for the whole qualification, out of 200: the lowest total that earns each grade. AQA published June 2026 on 20 August 2026 and June 2025 on 21 August 2025. Foundation awards grades 5 to 1 and Higher grades 9 to 3.

AQA GCSE Biology Higher tier boundaries

AQA GCSE Biology Foundation tier boundaries

The Higher grade 4 boundary was 52 in 2026 and 56 in 2025, so 4 marks easier. Biology's top grades need a high percentage: a grade 9 took 133 of 200 in 2026 and 141 in 2025. OurAQA GCSE grade boundaries 2026 guideshows every subject.

How AQA GCSE Biology differs from Edexcel

Both boards set two 1 hour 45 minute papers of 100 marks, with a calculator allowed. Pearson Edexcel GCSE Biology (1BI0) groups the content differently: Paper 1 covers key concepts, cells and control, genetics, natural selection and genetic modification, and health, disease and medicines, and Paper 2 covers key concepts again, plant structures, animal coordination and homeostasis, exchange and transport in animals, and ecosystems and material cycles. Edexcel lists eight core practicals where AQA lists ten. See theEdexcel GCSE Biology guideif you are on Edexcel.

Use the daily paper as a short timed mock

Uni-Sine publishes a free daily paper on theGCSE Biology HigherandGCSE Biology Foundationtracks. Each is a short timed paper of 8 questions worth 25 to 35 marks, not a full AQA paper, and it is not written by AQA. It covers cells and transport, enzymes and digestion, the circulatory system, immunity, photosynthesis, respiration, homeostasis, genetics, evolution and ecology. Sit it without notes and mark every extended answer against the steps of the idea, not just the keywords.

Common mistakes in AQA GCSE Biology

• Magnification units. Convert image and real size into the same unit before dividing.
• Mixing up diffusion, osmosis and active transport. Only active transport needs energy, and osmosis is about water only.
• Naming a variable without controlling it. In a practical question, say what you change, what you measure and what you keep the same.
• Saying "adapted" with no link. Link every feature to its function, such as a thin wall giving a short diffusion path.
• Genetics wording. Gene, allele and chromosome are different things, and carriers have one recessive allele.

Exam answers

The answers and a worked mark scheme come with today's paper once it is marked. We do not publish official or past paper answers. Every question on the daily paper is our own.

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