IISER Biology Syllabus 2026 (OUT): Check Class 11 and Class 12 NCERT Biology Syllabus Here

IISER entrance exam 2026 Biology syllabus has been released online. Biology syllabus is based on Class 11 & 12 topics. Students must focus on IISER entrance exam syllabus for their preparation. Read this Shiksha article to learn about the detailed IISER 2026 Biology syllabus to score an extra edge in the examination. Also, check out the weightage of Biology questions being asked in the examination.

IISER Entrance Exam 2026 Biology Syllabus

IISER 2026 syllabus for Biology is available now. Students can check IISER entrance exam 2026 Biology syllabus on this page. The syllabus of IISER Biology is based on Class 11 & 12 topics. Students use IISER Biology syllabus to know the important topics for exam preparation. There will be 15 questions from Biology in IISER Aptitude Test. Students must focus on high weightage topics to score maximum marks in Biology sections. IISER entrance exam syllabus for Physics, Chemistry, & Mathematics is also available online.

Practice IISER mock test 2026 for time management. Also, Solve IISER PYQ for self assessment and identifying high weightage topics.

IISER Aptitude Test Biology Syllabus 2026 Released

For better preparation for the IISER exam, the candidate must review the complete IISER 2026 syllabus, as the questions asked will test the candidate's analytic ability. Candidates can find out the detailed IAT Biology syllabus 2026 here in this article. A strong grasp of these topics, typically covered in the Class 11 and 12 NCERT biology curriculum, is essential for success in this section of the IAT.

IISER Biology Syllabus 2026: Class 11

Check out the IAT 2026 Biology syllabus of class 11 NCERT of the biology domain from here:

Diversity In the Living World:

• The living world: The Diversity in the living world, Taxonomic categories,
• Biological classification: Kingdoms (Monera, Protista, Fungi, Plantae, and Animalia), Viruses, Viroids and Lichens,
• Plant kingdom: Algae, Bryophytes, Pteridophytes, Gymnosperms, Angiosperms,
• Animal kingdom: Basis of classification of animals and Classification of Animals

Structural Organisation In Plants And Animals:

• Morphology of flowering plants: The Root, The Stem, The Leaf, The Inflorescence, The Flower, The Fruit, The Seed, Semi-technical Description of a Typical, Flowering Plant, Description of Some Important Families,
• Anatomy of flowering plants: The Tissue System, Anatomy of Dicotyledonous and Monocotyledonous Plants
• Structural organisation in animals: Organ and Organ System, Amphibian-Frog

Cell: Structure And Functions:

• Cell: the unit of life: A Cell, The Cell Theory, An Overview of Cell, Prokaryotic Cells, Eukaryotic Cells
• Biomolecules: Analysis of Chemical Composition of organisms, Primary and Secondary Metabolites, Biomacromolecules, Proteins, Polysaccharides, Nucleic Acids, Structure of
  Proteins, Enzymes
• Cell cycle and cell division: Cell Cycle, Mitosis and Meiosis and its significance

Plant Physiology:

• Photosynthesis in higher plants: Photosynthesis, Early Experiments, Location of photosynthesis, Pigments involved in Photosynthesis, Light Reaction, The Electron Transport, Synthesis and utilization of ATP and NADPH, The C4 Pathway, Photorespiration, Factors Affecting Photosynthesis.
• Respiration in plants: Do Plants Breathe? Glycolysis, Fermentation, Aerobic Respiration, The Respiratory Balance Sheet, Krebs/Citric acid cycle, Respiratory Quotient
• Plant growth and development: Growth, Differentiation, Dedifferentiation and Redifferentiation, Development, Plant Growth Regulators

Human Physiology:

• Breathing and exchange of gases: Respiratory Organs, Mechanism of Breathing, Exchange of Gases, Transport of Gases, Regulation of Respiration, Disorders of Respiratory System
• Body fluids and circulation: Tissue Fluids-Blood, Lymph, Circulatory Pathways, Double Circulation, Regulation of Cardiac Activity, Disorders of Circulatory System
• Excretory products and their elimination: Human Excretory System, Urine Formation, Function of the Tubules, Mechanism of Concentration of the Filtrate, Regulation of Kidney Function, Micturition, Role of other Organs in Excretion, Disorders of the Excretory System.
• Locomotion and movement: Types of Movement, Muscle, Skeletal System, Joints, Disorders of Muscular and Skeletal System
• Neural control and coordination: Neural System, Human Neural System, Neuron as Structural and Functional Unit of Neural System, Central Neural System
• Chemical coordination and integration: Endocrine Glands and Hormones, Human Endocrine System, Hormones of Heart, Kidney and Gastrointestinal Tract, Mechanism of Hormone Action.

Also Read: Courses Offered by IISc Bangalore: Eligibility Criteria & Complete Admission Process 

IISER Biology Syllabus 2026: Class 12

Check out the IAT 2026 Biology syllabus of class 12 NCERT of the biology domain from here:

Reproduction:

• Sexual reproduction in flowering plants: Flower structure, Angiosperms, Pre-fertilisation: Structures and Events, Double Fertilisation, Post-fertilisation: Structures and Events, Apomixis and Polyembryony
• Human reproduction: The Male Reproductive System, The Female Reproductive System, Gametogenesis, Menstrual Cycle, Fertilisation and Implantation, Pregnancy and Embryonic Development, Parturition and Lactation
• Reproductive health: Reproductive Health – Problems and Strategies, Population Explosion and Birth Control, Medical Termination of Pregnancy, Sexually Transmitted Diseases, Infertility

Genetics And Evolution:

• Principles of inheritance and variation: Mendel’s Laws of Inheritance, Inheritance of One Gene, Inheritance of Two Genes, Sex Determination, Mutation, Genetic Disorders.
• Molecular basis of inheritance: The DNA, The Search for Genetic Material, RNA World, Replication, Transcription, Genetic Code, Translation, Regulation of Gene Expression, Human
  Genome Project, DNA Fingerprinting
• Evolution: Origin of Life, Evolution of Life Forms – A Theory, Evidence for Evolution, Adaptive Radiation, Biological Evolution, Mechanism of Evolution, Hardy – Weinberg Principle, Evolution, Origin and Evolution of Man

Biology In Human Welfare:

• Human health and disease: Common Diseases in Humans, Immunity, AIDS, Cancer, Drugs and Alcohol Abuse
• Microbes in human welfare: Microbes in Household Products, Microbes in Industrial Products, Microbes in Sewage Treatment, Microbes in Production of Biogas, Microbes as Biocontrol
  Agents, Microbes as Biofertilisers

Biotechnology:

• Biotechnology: principles and processes: Principles of Biotechnology, Tools of Recombinant DNA Technology, Processes of Recombinant DNA Technology
• Biotechnology and its application: Biotechnological Applications in Agriculture and Medicine, Transgenic Animals, Ethical Issues

Ecology:

• Organisms and populations: Populations, Logistic growth, Population interactions
• Ecosystem: Ecosystem–Structure and Function, Productivity, Decomposition, Energy Flow, Ecological Pyramids
• Biodiversity and conservation: Biodiversity and Biodiversity conservation

IISER Entrance Exam 2026: Subject Weightage

The IISER Entrance Exam Marking Scheme and subject weightage are as follows:

Marking scheme: Candidates will be awarded three marks for each correct answer. There will be a negative marking of one mark for each incorrect answer.

Also Read: IISER Entrance Exam 2026 Pattern: Section-wise Paper Pattern, Marking Scheme