Leaving Certificate Biology


The Leaving Certificate classes consist of maximum 24 students per class and are mixed ability.  Students taking the Higher and Ordinary level paper are taught together.

The timetable consists of three single classes and one double class per week.

Core Syllabus:

The syllabus consists of the following topics;


  • The Scientific Method
  • Food
  • Ecology and Ecosystems
  • Cell Structure and Cell Diversity
  • Cell Division
  • Enzymes
  • Respiration
  • Photosynthesis
  • DNA, Genetics and Evolution
  • The Blood
  • The Heart and Circulatory System
  • The Digestive System
  • The Nervous System
  • The Excretory System
  • The Reproductive System
  • Structure and Transport in Flowering Plants
  • Plant Reproduction
  • Human Reproduction
  • Bacteria
  • Fungi
  • Viruses


There are 22 mandatory experiments for the course and students will be examined on these in the paper. For each experiment students must be able to draw a diagram of the set up, describe all of the steps involved and be able to state the reasons for taking these steps as they 


The Leaving Certificate examination consists of a 3-hour examination in June. Students can sit this examination at Higher or Ordinary Level.