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Oxford Online School

Key Stage 5

🧬 Biology

Investigate life at every scale through a rigorous A Level Biology course with live lessons, small classes and expert teacher support.

Overview

A Level Biology provides the scientific foundation for university study in medicine, life sciences and related fields. Students explore cellular processes, genetics, ecology and physiology, developing the analytical and evaluative skills that underpin modern biological research.

What Students Study

Cell Biology and Biochemistry

Students build a thorough understanding of cell structure, function and the biochemical reactions that sustain life. This unit bridges microscopic biological processes with broader physiological systems.

  • Cell structure, membranes and organelle function
  • Biological molecules and enzyme activity
  • Cell transport, division and the cell cycle

Genetics and Inheritance

Students examine how genetic information is stored, expressed and passed between generations. Topics range from molecular genetics to population-level inheritance patterns.

  • DNA structure, replication and protein synthesis
  • Mendelian genetics and inheritance patterns
  • Gene expression, mutation and genetic diversity

Physiology and Organ Systems

This unit covers the major systems of the human body and how they function together to maintain homeostasis. Students develop quantitative skills through analysis of physiological data.

  • Circulatory, respiratory and digestive systems
  • Nervous system and endocrine control
  • Homeostasis and feedback mechanisms

Ecology and Biodiversity

Students investigate the relationships between organisms and their environments, from population dynamics to ecosystem-wide energy flows. Conservation and human impact are examined critically.

  • Ecosystems, food webs and energy transfer
  • Population dynamics and ecological interactions
  • Biodiversity, conservation and environmental impact

Practical and Scientific Skills

Students develop the investigative and analytical skills essential for scientific study at university. Experimental design, data handling and evaluation are practised throughout the course.

  • Planning and carrying out biological investigations
  • Data analysis, graphs and statistical reasoning
  • Evaluating evidence and drawing valid conclusions

Assessment & Progress

Oxford Online School follows the Pearson Edexcel International A Level (IAL) Biology specification. This globally recognised qualification is assessed entirely through written examination, with no coursework requirement. To build exam readiness, students complete:

  • Weekly homework assignments
  • Termly project-based assessments
  • Full mock exams with personalised written feedback

Course Details

Assessment

  • The qualification is assessed entirely through written examinations.
  • No coursework or non-examined assessment component is required.
  • All examinations are sat at an approved Pearson Edexcel International A Level centre.
  • Grades are awarded on a scale from A* to E.

Course Duration

The International A Level course runs over two academic years (Years 12 and 13). Students have continuous access to live online lessons, one-to-one subject support, and learning resources throughout the programme.

Course Outcome

Students who successfully complete all required examinations are awarded the Pearson Edexcel International A Level qualification. This is recognised by universities and higher education institutions worldwide as equivalent to UK A Levels.

Entry Requirements

  • Five or more International GCSE grades at C/4 or above (or equivalent)
  • Grade B/6 or above at IGCSE level in the chosen A Level subject or a closely related science
  • Grade B/6 or above in International GCSE Mathematics
  • A pass in an internal subject assessment completed prior to enrolment
  • Students whose English is not their first language must provide a language certificate showing a minimum B2 level in all components, or sit an internal English assessment
  • Two years of previous school reports are required
FAQs

Frequently asked questions

Have questions about A Level Biology? Here are some of the key things families often want to know.

Next steps

Ready for university?

Our Sixth Form A Level programme gives students the grades, skills, and personal statement support to secure their university place.