IIT JAM 2026 Chapter Wise Weightage; Know Important Topics

Biology

44

Chemistry

20

Mathematics

18

Physics

18

Biochemistry: Structure and function of biological macromolecules; Allostery; Enzymes – basic mechanisms of enzyme catalysis, Michaelis-Menten kinetics, enzyme inhibition, vitamins as coenzymes, and regulation; Bioenergetics – free-energy change, high-energy compounds, biological oxidation-reduction reactions and reduction potential; Metabolism – glycolysis, TCA cycle, oxidative phosphorylation, photosynthesis, nitrogen fixation, urea cycle, and regulation of glycolysis and TCA cycle.

Genetics: Mendel’s laws; Inheritance patterns of polygenic traits; Mendelian inheritance patterns of human disorders; Pedigree analysis; Chromosomal basis of inheritance; Genetic recombination; Mapping genes on chromosomes based on linkage analysis; Plant breeding.

Molecular Biology: Landmark experiments that established DNA is the genetic material; DNA replication; Proof-reading and repair of DNA; DNA recombination; Transcription; RNA processing; Translation; Regulation of gene expression including operons bacteria and differential gene expression in multicellular eukaryotes.

Animal Biology: Digestive, circulatory, respiratory, excretory, nervous, reproductive and endocrine

systems; Basics of immunology – Innate and adaptive immunity, Immune cells and Immunoglobulins;

Animal development – Fertilization, embryonic pattern formation, cleavage, gastrulation, cellular

differentiation and morphogenesis.

Ecology: Climate patterns; Terrestrial and aquatic biomes; Environmental constraints on speciesdistribution; Factors affecting population density; Interactions among communities;

Biotechnology: Plant tissue culture; Cloning of animals through somatic cell nuclear transfer; Applications of recombinant DNA technology in medicine, agriculture and forensic science.

Units and measurements; Motion in one and two dimensions; Laws of motion; Work and kinetic energy; Conservation of energy; System of particles and rotational motion; Mechanical properties of solids and fluids; 

Electric charge and field; Electric potential and capacitance; Current, resistance and simple circuits; Moving charges and magnetic field; Magnetism and matter; Magnetic force, Electromagnetic induction; Electromagnetic waves; Alternating currents; Optics: Geometrical Optics – Reflection by spherical mirrors, Refraction at spherical surfaces and lenses, Total internal reflection and Optical instruments;

Wave optics – Reflection and refraction of plane waves, Interference, Diffraction, Polarization, and Young’s experiment: Dual nature of radiation and matter; Atoms, nuclei and nuclear physics; Semiconductor materials, devices and simple circuits.

Structure and properties of Atoms: Bohr's theory; Periodicity in properties.

Bonding in molecules: Chemical bonding; Complex formation; Physical and chemical basis of

molecular interactions.

Chemical kinetics, thermodynamics, and equilibrium: Chemical equilibrium; Chemical

thermodynamics (first and second law); and Chemical kinetics (zero and first order reactions).

Physical and chemical properties of compounds: Chemical catalysis; Acid-base concepts;

Concepts of pH and buffer; Conjugative effects and resonance; Inductive effects; Electromeric effects;

Photochemistry; and Electrochemistry.

Physical and chemical properties of compounds: Chemical catalysis; Acid-base concepts;

Concepts of pH and buffer; Conjugative effects and resonance; Inductive effects; Electromeric effects;

Photochemistry; and Electrochemistry.

Instrumental techniques - Spectroscopy: fundamentals of molecular spectroscopy, emission and

absorption spectroscopy, UV-Vis, IR and 1-D proton NMR spectroscopy, basics of mass

spectrometry; Basics of calorimetry; Basic concepts of crystallography.

Permutations and Combinations; Binomial Theorem; Vectors; Matrices and Determinants; Boolean Algebra; Functions; Limits and Continuity; Differentiation; Ordinary Differential Equations; Application of Derivatives; Integration as inverse process of differentiation; Definite and indefinite integrals; Methods of Integration; Integration by parts.

Statistics: Measures of dispersion; Mean Deviation for grouped and ungrouped data; Variance and Standard Deviation; and Analysis of Frequency Distribution.

Probability: Random Experiments; Event; Axiomatic Approach to Probability; Conditional Probability and its properties; Multiplication Theorem on Probability; Independent Events; Bayes’ Theorem; Random Variables and its Probability Distributions; Bernoulli Trails and Binomial Distributions.

Modern Physics

21

SSP & Electronics

11

Electricity & Magnetism

12

Oscillation, Wave & Optics

10

KTG & Thermodynamics

14

Mathematical Methods

15

Mechanics

13

Kinetic theory, Thermodynamics

Mathematical Methods

Simple Oscillators

Mechanics and General Properties of Matter

Oscillations, Waves and Optics

Modern Physics

Electricity and Magnetism

Solid State Physics, Devices and Electronics

Bipolar Junction Transistor (BJT)

Boolean algebra

Organic Chemistry

30-40

Inorganic Chemistry 

20

Physical Chemistry

18

Organic Chemistry

Organic Reaction Mechanism & Synthetic Application

Basic Concept of Organic Chemistry and Stereochemistry

Inorganic Chemistry 

Transition metals (d-block)

Physical Chemistry

Chemical Kinetics

Electrochemistry

Differential Calculus

23

Linear Algebra

13

Sequence and Series

12

Differential Equation

12

Integral Calculus

11 

Vector Calculus

10

Random Variables

20

Estimation

15

Differential Calculus

13

Matrices

10

Sequences and Series

10