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Online A Level Biology delivers the Pearson Edexcel International AS/A Level Biology specification through qualified biology teachers, structured lessons, and written examination assessment — including written Alternative to Practical papers that replace physical laboratory examinations. It is a core prerequisite for Medicine, Veterinary Science, Biochemistry, and Nursing, and is fully deliverable through an accredited online school.
Online A Level Biology delivers the Pearson Edexcel International AS/A Level Biology specification through qualified biology teachers, structured lessons, and written examination assessment — including written Alternative to Practical papers that replace physical laboratory examinations. It is a core prerequisite for Medicine, Veterinary Science, Biochemistry, and Nursing, and is fully deliverable through an accredited online school.
AS Level (Units 1–3):
Unit 1: Molecules, Diet, Transport and Health — biological molecules, enzymes, cell transport, health and disease
Unit 2: Cells, Development, Biodiversity and Conservation — cell structure, mitosis, genetics basics, classification
Unit 3: Practical Skills in Biology I — written Alternative to Practical paper
A Level (Units 4–6):
Unit 4: Energy, Environment, Microbiology and Immunity — respiration, photosynthesis, ecosystems, immune system
Unit 5: Respiration, Internal Environment, Coordination and Gene Technology — homeostasis, nervous system, DNA technology
Unit 6: Practical Skills in Biology II — written Alternative to Practical paper
Pearson Edexcel International A Level Biology assesses practical skills through written papers (Units 3 and 6). These assess experimental design, data interpretation, statistical analysis, graph drawing, and scientific reasoning — all the analytical skills that laboratory work is designed to develop.
No physical biology laboratory is required for online study. Students who are concerned about the practical element should be reassured that the written Alternative to Practical papers are assessed to the same standard and accepted on the same terms by universities as the laboratory-based practical assessments.
Biology is a prerequisite or strongly preferred subject for:
Medicine, Dentistry, Veterinary Science (Biology + Chemistry both typically required)
Nursing, Midwifery, Physiotherapy
Biochemistry and Biomedical Science
Ecology, Environmental Science, Marine Biology
Sports Science and Exercise Science
At most UK medical schools, both Biology and Chemistry at A Level are required. Veterinary Science universally requires both. Plan Biology and Chemistry together as a pair — not as separate, independent choices.
Grade 6 or above in GCSE or International GCSE Biology (or Combined Science)
Ability to learn substantial amounts of technical terminology and factual content
Comfort with written analysis — Biology examinations are more essay-based than Physics or Mathematics
Grade 5 or above in GCSE Mathematics — statistical analysis appears throughout Biology A Level
Can I take A Level Biology and Chemistry online simultaneously? Yes — this is the standard combination for medical and veterinary applicants. Online schools, including Teneo, offer both subjects as part of a structured programme. The timetable accommodates multiple science subjects.
Is Biology A Level online accepted for nursing and allied health courses? Yes. Pearson Edexcel International A Level Biology is accepted by university nursing, midwifery, physiotherapy, and other allied health programmes as equivalent to domestic A Level Biology.
How much content is there in Biology A Level? Biology is one of the most content-heavy A Level subjects. Students typically describe the volume of material as the biggest challenge. Consistent revision from early in Year 12 — not a pre-examination rush — is the most effective strategy.
Explore Teneo's AS Level programme, see the full British International curriculum, view results and accreditation, or contact the admissions team to discuss subject combinations for your target degree.