Kilroy's College

Kilroy's College

Online & Home Study Courses

Leaving Certificate Biology course

Course Contents

Remember, you can complete this Leaving Certificate Biology course within 6 to 24 Months of enrolling. So take your first step by contacting us today !

Please note the content shown below is 2025 syllabus. This course is also available for 2026 syllabus. Please contact college for details.

Higher Level

See Ordinary level >>

Human Nutrition

Ecology


Detailed Content

The Cell - Structure, cell division and continuity

  • Cell theory
  • Cell ultrastructure
  • The Light Microscope
  • The Electron Microscope
  • Prokaryotic & Eukaryotic Cells
  • Cell Reproduction
  • The cell cycle
  • Mitosis

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Food, Nutrition and Metabolism

  • Functions of Food
  • Protein
  • Carbohydrates
  • Lipids
  • Vitamins
  • Minerals & Water
  • Cell Metabolism
  • Enzymes - The enzyme substrate complex, The lock and Key Theory, Factors affecting enzyme action, Immobilised enzymes

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Diversity of organisms

  • Classification of organisms
  • The prokaryotes
  • Bacteria ( monera ) - reproduction, nutrition
  • Viruses - replication, medical advantages and disadvantages, antibiotics
  • Fungi kingdom - rhizopus or bread moulding, reproduction, saccharomycetes yeast, laboratory procedures when dealing with microorganisms, technology and industry

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Plant tissues, the flowering plant and Photosynthesis

  • The flowering plant
  • Meristematic regions of the plant and root
  • Root structure
  • Meristematic regions of the root
  • Functions of the roots
  • The shoot
  • The functions of leaves
  • Structure of the flowering plant
  • Photosynthesis chemical reaction
  • Chlorophyll
  • Biochemistry of photosynthesis
  • ATP - The light reactions
  • The three stages of photosynthesis
  • Cylic photosphorylation
  • Non cylic photosphorylation
  • The dark reactions
  • Plant Transport
  • Translocation

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Human circulation and the respiratory system

  • The heart - The human vascular system
  • The circulatory system
  • Coronary circulation
  • The cardiac cycle
  • Heart disease an why it occurs
  • The blood
  • Blood groups
  • Blood vessals
  • The lymphatic system
  • The lungs
  • Exchange of gases
  • Inhalation & exhalation
  • Breathing disorders

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Human Nutrition

  • Digestive system
  • Digestive glands
  • The mouth
  • Digestion in the stomach
  • Digestion in small intestine
  • Small intestine digestive juices
  • An introduction to respiration
  • Digestion in large intestine
  • Summary of the absorption of digested food
  • The liver
  • Bile
  • Balanced diet
  • Excretory system in humans
  • The skin
  • The urinary system
  • Diseases of the urinary tract
  • The nephron
  • How urine is formed

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Co-ordination and the Nervous System

  • The skeleton
  • Muscles
  • Growth and development of the bones
  • Eye
  • Ear
  • The nervous system
  • The neurone
  • Nerve impulse
  • Reflex Arc
  • The brain
  • The spinal chord
  • Nervous system problems
  • The Endocrine system
  • The pituitary, thyroid and adrenal glands

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Plant and Human reproduction

  • Germination - The flower
  • Fertilisation
  • Pollen grain development (male gamete formation)
  • Embryo sac development (female gamete formation)
  • Germination of the seed
  • Vegetative propagation
  • Phytohormones
  • Tropisms in more detail
  • Phototropism
  • Geotropism
  • Auxins
  • Human reproduction
  • Male reproduction
  • Female reproduction
  • The menstrual cycle
  • Pregnancy and birth
  • Development of the Embryo
  • Infertility

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Genetic and Evolution

  • Genetic crossing
  • Mendelian genetics
  • Multiple alleles
  • Incomplete dominance
  • Meiosis and gamete formation
  • Linkage and Crossing over
  • Sex linkage
  • Evolution
  • Chromosones and DNA
  • Protein Synthesis and DNA
  • DNA profiling
  • Genetic engineering

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Respiration and the Immune system

  • Anaerobic and aerobic respiration
  • Glycolysis
  • Hydrogen carrier system
  • The body's defence system
  • The Antigen - Antibody reaction
  • Types of immunity
  • Lymphocytes

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Ecology

  • The ecosystem
  • Pyramid of numbers
  • Methods of studying ecosystems
  • A habitat - the rocky seashore
  • The carbon cycle
  • The nitrogen cycle
  • Population - competition and predation, parasitism and symbosis, dynamics
  • Man's impact on the environment
  • Pollution
  • Conservation and waste management

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