Leaving Cert Biology 2018

The 2018 Leaving Cert Biology exam paper and official marking scheme, free below as direct PDF links from the State Examinations Commission archive.

Higher Level

Exam PaperMarking Scheme
What's in the 2018 Higher Level paper?
  • Q1 food, carbohydrates, lipids, food tests · 20 marks
  • Q2 ecology, habitat, niche, biosphere · 20 marks
  • Q3 cell cycle, mitosis, meiosis, cancer · 20 marks
  • Q4 genetic engineering, biotechnology, plasmids, cloning vectors · 20 marks
  • Q5 auxin, plant growth regulators, tropism, horticulture · 20 marks
  • Q6 nephron, kidney, adh, osmoregulation · 20 marks
  • Q7 scientific method, fermentation, microscopy, food tests · 30 marks
  • Q8 photosynthesis, light intensity, limiting factors, experiments · 30 marks
  • Q9 fungi, leaf yeast, aseptic technique, microbiology · 30 marks
  • Q10 ecology, pyramid of numbers, population, conservation · 60 marks
  • Q11 blood, heart, nervous system, synapse · 60 marks
  • Q12 atp, respiration, krebs cycle, enzymes · 60 marks
  • Q13 nucleic acids, genetics, mendel, evolution · 60 marks
  • Q14 seeds, germination, leaf structure, endocrine system · 60 marks
  • Q15 bacteria, antibiotics, immunity, eye · 60 marks

Ordinary Level

Exam PaperMarking Scheme
What's in the 2018 Ordinary Level paper?
  • Q1 biomolecules, proteins, nutrition · 20 marks
  • Q2 skeleton, joints, anatomy · 20 marks
  • Q3 enzymes, immobilised enzymes, biotechnology · 20 marks
  • Q4 human reproduction, anatomy, fertility · 20 marks
  • Q5 scientific method, experimentation, true or false · 20 marks
  • Q6 cell biology, plant cells, microscopy · 20 marks
  • Q7 breathing, exercise physiology, experimentation · 30 marks
  • Q8 enzymes, temperature, experimentation · 30 marks
  • Q9 digestion, germination, food tests, experimentation · 30 marks
  • Q10 ecology, food webs, adaptation · 60 marks
  • Q11 genetics, dna, protein synthesis, sex determination · 60 marks
  • Q12 circulatory system, vascular tissue, skin, anatomy · 60 marks
  • Q13 photosynthesis, respiration, fermentation · 60 marks
  • Q14 human ear, immunity, vaccination, teeth · 60 marks
  • Q15 flower structure, roots, tropisms, plant biology · 60 marks
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All PDFs open on the State Examinations Commission archive (examinations.ie). ExamAI links to them; we don't host or alter them.