2027 Exam Structure & Timing
Assessment in Leaving Certificate Biology has two components:
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Biology in Practice Investigation (40%)
Common brief issued annually by the SEC.
Completed over the two-year course.
Worth 40% of the final grade.
Takes approximately 20 hours to complete.
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Students:
Research a scientific issue.
Plan and carry out an experiment.
Collect and analyse primary data.
Evaluate findings and draw evidence-based conclusions.
Submit a final report in the SEC-prescribed format.
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Written Examination (60%)
Consists of 7 questions.
Each question carries 50 marks.
Answer Question 1 and any 5 other questions.
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Total: 6 questions = 300 marks.
Time allowed: 2 hours 30 minutes.
Available at Higher Level and Ordinary Level.
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Questions assess knowledge, understanding, application and scientific skills appropriate to each level.
Official Sample Papers
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No official SEC marking schemes supplied as none of these papers were sat by students.
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Higher Level:
Sample Paper 1 (English Version) - https://www.examinations.ie/misc-doc/EN-EX-25716729.pdf
Sample Paper 2 (English Version) - https://www.examinations.ie/misc-doc/EN-EX-97103076.pdf
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Sample Paper 1 (Irish Version) - https://www.examinations.ie/misc-doc/IR-EX-6981288.pdf
Sample Paper 2 (Irish Version) - https://www.examinations.ie/misc-doc/IR-EX-94576507.pdf
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Ordinary Level:
Sample Paper 1 (English Version) - https://www.examinations.ie/misc-doc/EN-EX-93735117.pdf
Sample Paper 2 (English Version) - https://www.examinations.ie/misc-doc/EN-EX-75544701.pdf
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Sample Paper 1 (Irish Version) - https://www.examinations.ie/misc-doc/IR-EX-24046267.pdf
Sample Paper 2 (Irish Version) - https://www.examinations.ie/misc-doc/IR-EX-47813010.pdf


Senior Cycle Biology Overview
Leaving Certificate Biology syllabus at Senior Cycle is assessed at Ordinary and Higher levels.
A new Leaving Certificate Biology syllabus will be studied by students in schools from September 2025.
The syllabus consists of:
Unifying Strand - Nature of Science
Strand One - Organisation of Life
Strand Two - Structures & Processes of Life
Strand Three - Interactions of Life
Biology is the study of life. Through the study of this subject, students explore the diversity of life and the relationships between organisms and their environment. They become aware of how living organisms and their products are of use to enhance the environment and human health.
