Leaving Cert Biology 2020

The 2020 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 2020 Higher Level paper?
  • Q1 biomolecules, metabolism, human nutrition · 20 marks
  • Q2 scientific method, experimental design, controls · 20 marks
  • Q3 cell biology, mitosis, evolution, genetics · 20 marks
  • Q4 dna structure, nucleic acids, rna · 20 marks
  • Q5 the senses, eye, ear, skeletal system · 20 marks
  • Q6 nervous system, neuron, nerve impulse · 20 marks
  • Q7 enzymes, immobilised enzymes, experiments · 30 marks
  • Q8 germination, seed, digestion, experiments · 30 marks
  • Q9 heart, circulatory system, dissection, experiments · 30 marks
  • Q10 ecology, adaptation, food chains, energy flow · 60 marks
  • Q11 photosynthesis, leaf structure, respiration · 60 marks
  • Q12 genetics, dna profiling, inheritance, incomplete dominance · 60 marks
  • Q13 homeostasis, excretion, kidney, nephron · 60 marks
  • Q14 menstrual cycle, plant reproduction, bacteria, microbiology · 60 marks
  • Q15 plant hormones, tropisms, immunity, plant transport · 60 marks

Ordinary Level

Exam PaperMarking Scheme
What's in the 2020 Ordinary Level paper?
  • Q1 nutrition, biomolecules, fibre · 20 marks
  • Q2 true or false, classification, kingdoms · 20 marks
  • Q3 carbon cycle, ecology, decomposition · 20 marks
  • Q4 enzymes, matching, experimentation · 20 marks
  • Q5 cell types, cell biology, identification · 20 marks
  • Q6 blood, transport, transfusion · 20 marks
  • Q7 osmosis, membranes, experimentation · 30 marks
  • Q8 habitat study, ecology, fieldwork, percentage cover · 30 marks
  • Q9 plant responses, growth regulators, tropism, experimentation · 30 marks
  • Q10 ecology, food chains, fieldwork, waste management · 60 marks
  • Q11 genetics, dna, dna profiling, monohybrid cross · 60 marks
  • Q12 breathing system, diffusion, gas exchange, circulatory system · 60 marks
  • Q13 photosynthesis, plant biology, monocots and dicots, plant tissues · 60 marks
  • Q14 fermentation, anaerobic respiration, plant cell, fungi · 60 marks
  • Q15 human eye, flower structure, human reproduction, anatomy · 60 marks
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