Why choose A level biology?
A level biology explores the living world, from the molecular and cellular levels to the interactions between organisms and their environments. Students study the structure and function of biological molecules, cells, genetics, and ecosystems – as well as advanced topics such as homeostasis, energy transfers, gene expression, and evolution.
The course builds strong scientific thinking and practical skills, including analysis, evaluation, and experimental design. Students also develop synoptic essay writing skills, which are highly valued by universities.
This course can be taken at AS or A level.
Course type: A level
Board: AQA
Entry requirment: Grade 7-7 in GCSE combined science or grade 7 or above in GCSE biology with grade 6 in maths, physics and chemistry
How will A level biology be delivered?
| Unit | Content | |
| Year 12 | Biological molecules | Structure and function of carbohydrates, proteins, lipids, enzymes, DNA, and water |
| Cells | Cell structure, microscopy, cell division, and membrane transport | |
| Organisms exchange substances with their environment | Gas exchange, digestion, and circulation in animals and plants | |
| Genetic information, variation and relationships between organisms | DNA, protein synthesis, genetic diversity, and classification of organisms | |
| Year 13 | Energy transfers in and between organisms | Photosynthesis, respiration, energy flow, and nutrient cycles |
| Organisms respond to changes in internal and external environments | Nervous and hormonal control, muscle contraction, and homeostasis | |
| Genetics, populations, evolution and ecosystems | Inheritance, population genetics, evolution, and ecological interactions | |
| The control of gene expression | Gene regulation, DNA technology, epigenetics, and genetic engineering |
Assessment
Assessment is through written examination at the end of each course:
AS Level (if taken as a standalone qualification)
- Two written papers – each 1 hour 30 minutes
- Each paper contributes 50% of the AS grade
- Assesses content from year 12 only
A Level
- Paper 1: Year 12 content – 2 hours – 35% of A Level
- Paper 2: Year 13 content – 2 hours – 35% of A Level
- Paper 3: Synoptic and practical-based questions – 2 hours – 30% of A Level
Students will also complete a series of required practicals, which are reported separately as a practical endorsement but do not contribute to the overall A Level grade.
Progression
A level biology is a versatile and well-regarded qualification that supports entry into a wide range of higher education courses and careers. It is especially relevant for science, healthcare, and environmental fields.
Studying this course can help students to:
- Access university degrees such as medicine, veterinary science, nursing, dentistry, physiotherapy, and psychology
- Enter careers in biomedical sciences, genetics, neuroscience, forensics, ecology, botany, or zoology
- Develop transferable skills in research, analysis, scientific writing, and problem-solving
- Pursue roles in the NHS, pharmaceutical industry, conservation, education, or science communication
