IB Biology Course Structure

IB Biology equips students with the knowledge and skills to investigate the living world. This includes the study of all levels using many different approaches and techniques. Through studying Biology, students should become aware of how scientists work with each other. While the scientific method may take on a wide variety of forms, the emphasis is on a practical approach. In addition, through the theme of the “Nature of Science”, the knowledge and skills will be put into context. Besides, there are 2 different levels offered, Higher Level (HL) and Standard Level (SL). Our experienced trainers will walk you through the key concepts as well as applications in examples. Our course structure for the 2 levels can be found below. Check them out!

Biology Standard Level

Sessions for core curriculum (shared by both SL and HL):
SessionTopicsSubtopics
1Cell biologyIntroduction to cells, ultrastructure of cells, membrane structure/transport, cell division
Molecular biologyMetabolism, water, carbohydrates and lipids, proteins, enzymes, DNA and RNA, cell respiration, photosynthesis
GeneticsGenes, chromosomes, meiosis, inheritance, genetic modification and biotechnology
2EcologySpecies, communities and ecosystems, energy flow, carbon cycling, climate change
Evolution and biodiversityEvidence for evolution, natural selection, classification and biodiversity cladistics
Human physiologyDigestion and absorption, the blood system, defence against infectious diseases, gas exchange, neurons and synapses, Hormones, homeostasis and reproduction
Sessions for option curriculum (Both SL and HL pick one):
SessionTopicSubtopics
ANeurobiology and behaviourNeural development, the human brain, stimuli, innate and learned behaviour, neuropharmacology, ethology
BBiotechnology and bioinformaticsMicrobiology, agricultural biology, environmental protection, medicine, bioinformatics
CEcology and conservationSpecies and communities, ecosystems, impact of humans on ecosystems, conservation of biodiversity, population ecology, the nitrogen and phosphorus cycles
DHuman physiologyHuman nutrition, digestion, liver functions, the heart, hormones and metabolism, transport of respiratory gases

Biology Higher Level

Sessions for core curriculum (shared by both SL and HL):
SessionTopicsSubtopics
1Cell biologyIntroduction to cells, ultrastructure of cells, membrane structure/transport, cell division
Molecular biologyMetabolism, water, carbohydrates and lipids, proteins, enzymes, DNA and RNA, cell respiration, photosynthesis
GeneticsGenes, chromosomes, meiosis, inheritance, genetic modification and biotechnology
2EcologySpecies, communities and ecosystems, energy flow, carbon cycling, climate change
Evolution and biodiversityEvidence for evolution, natural selection, classification and biodiversity cladistics
Human physiologyDigestion and absorption, the blood system, defence against infectious diseases, gas exchange, neurons and synapses, Hormones, homeostasis and reproduction
Sessions for AHL curriculum (HL students only):
SessionTopicsSubtopics
1Nucleic acidsDNA structure and replication, transcription and gene expression, translation
Metabolism, cell respiration and photosynthesisMetabolism, cell respiration, photosynthesis
Plant biologyXylem/phloem transport, growth and reproduction in plants
2Genetics and evolutionMeiosis, inheritance, gene pool and speculation
Animal physiologyAntibody production and vaccination, movement, the kidney and osmoregulation, sexual reproduction
Sessions for option curriculum (Both SL and HL pick one):
SessionTopicSubtopics
ANeurobiology and behaviourNeural development, the human brain, stimuli, innate and learned behaviour, neuropharmacology, ethology
BBiotechnology and bioinformaticsMicrobiology, agricultural biology, environmental protection, medicine, bioinformatics
CEcology and conservationSpecies and communities, ecosystems, impact of humans on ecosystems, conservation of biodiversity, population ecology, the nitrogen and phosphorus cycles
DHuman physiologyHuman nutrition, digestion, liver functions, the heart, hormones and metabolism, transport of respiratory gases

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IB Subjects

Prep Zone Academy offers a range of IB subject preparation courses. You are invited to a free trial class with one of our IB certified trainers for any subjects of your choice!