IISER Entrance Exam Syllabus 2026: Download Latest Syllabus PDF

Candidates can go through IISER Biology Syllabus given below.

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 

Reproduction:
Sexual reproduction in flowering plants: Flower structure, Angiosperms, Prefertilisation: 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 

Also Read: IAT Biology Important Topics and Chapter-wise Weightage

Candidates can go through important topics that they should consider studying to score well on the IISER Chemistry section. Check the IISER Entrance Exam Chemistry syllabus below.

• Organic Chemistry – Some Basic Principles and Techniques
• Hydrocarbons
• Environmental Chemistry
• The solid state
• Solutions
• Electrochemistry
• Chemical Kinetics
• Surface chemistry
• General principles and processes of the isolation of elements
• The d- & f-block elements
• Coordination compounds
• Haloalkanes and haloarenes
• Alcohols, phenols and ethers
• Aldehydes, ketones and carboxylic acids
• Some basic concepts of chemistry
• Structure of Atom
• Classification of Elements and Periodicity in Properties
• Chemical Bonding and Molecular Structure
• States of Matter
• Thermodynamics
• Equilibrium
• Redox Reactions
• Hydrogen
• The s-block Elements
• The p-block Elements
• Organic compounds containing nitrogen
• Biomolecules
• Polymers

Candidates can go through important topics that they should consider studying in order to score well in the IISER Physics section, as mentioned below:

• Physical World and Measurement
• Waves
• Kinematics
• Electrostatics
• Laws of Motion
• Current Electricity
• Work, PEnergy and Power
• Magnetic effect of current and magnetism
• Motion of Systems of Particles and Rigid body
• Electromagnetic Induction
• Gravitation
• Alternating Current
• Properties of bulk matter
• Electromagnetic Waves
• Thermodynamics
• Optics
• Behaviour of perfect gas and kinetic energy
• Dual Nature of Radiation and Matter
• Oscillations
• Atoms
• Electronic devices
• Nuclei
• Communication Systems

Also Read: IISER Entrance Exam Physics Syllabus

Candidates can go through important topics that they should consider studying in order to score well in the IISER Entrance Exam Mathematics section as mentioned below:

• Sets Introduction to Three Dimensional
• Geometry
  Relations and functions
• Limits and Derivatives
  Trigonometric Functions
• Mathematical Reasoning
  Inverse Trigonometric Functions
• Statistics
  Principle of Mathematical Induction
• Probability
  Complex Numbers and Quadratic Equations
• Matrices
• Linear Inequalities
• Determinants
  Permutations and Combinations
• Continuity and Differentiability
  Binomial Theorem
• Application of Derivatives
  Sequences and Series
• Integrals
• Straight Lines
• Applications of integrals
  Conic Sections
• Differential equations
• Vectors
• Three-dimensional geometry
• Linear Programming

The IISER Entrance Exam Pattern states that it is a computer-based test of three hours duration. There will be a total of 60 multiple-choice questions from Physics, Chemistry, Biology and Mathematics. Each question will carry four answer options, and test takers have to select the correct answer option. 

Take a look at the table below for the IISER Aptitude Test 2026 exam structure. 

Each question carries four marks, and one mark will be removed for each wrong answer. 

Note: The IISER Aptitude Test exam pattern stated above is that of last year. The information will be updated in case there is a change.

To be familiar with the test, students are advised to take the IISER Aptitude Test Mock Test released by the conducting body. Based on this, decide on the IISER Entrance Exam preparation strategy. 

Check the Frequently Asked Questions (FAQs) regarding the IISER Entrance Exam 2026 syllabus.