UPASANA
UPASANA PRADHAN
Assistant Manager- Editorial
Updated on Sep 30, 2025 12:57 IST
IIT Guwahati has released the exam pattern and syllabus for GATE 2026 XL. The GATE 2026 exam dates are Feb 7, 8, 14, and 15. With a few months left for the GATE 2026 exam, candidates can devise a good prep strategy and tips using this information with important GATE 2026 XL syllabus, topics, books and more.

IIT Guwahati has released the exam pattern and syllabus for GATE 2026 Life Sciences. GATE 2026 Exam is scheduled for February 7, 8, 14 and 15 . Candidates can devise a good prep strategy with a few months left for the GATE 2026 exam through the information on this page.

GATE XL Syllabus

GATE 2026 Life Sciences Syllabus, Important Topics and Books

GATE 2026 Life Sciences Syllabus: IIT Guwahati will conduct the GATE 2026 exam on February 7, 8, 14 and 15 2026. IIT Guwahati has released all sections' GATE 2026 Life Sciences exam dates and syllabus. Candidates willing to appear for the GATE XL paper 2026 should know the important topics, suitable sections, marking scheme and other important aspects of the exam. Candidates can check section-wise GATE life science (XL) sample papers and syllabus in detail, the marking scheme and more on this page below;

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Table of contents
  • Latest Updates
  • GATE 2026 Life Science: Exam Pattern and Marking Scheme
  • GATE 2026 Life Sciences Syllabus: Section-wise brief Syllabus
  • GATE 2026 Life Sciences Syllabus: (XL-P) Chemistry Syllabus
  • GATE 2026 Life Sciences Syllabus: (XL-Q) Biochemistry Syllabus
  • GATE 2026 Life Sciences Syllabus: (XL-R) Botany Syllabus
  • GATE 2026 Life Sciences Syllabus: (XL-S) Microbiology Syllabus
  • GATE 2026 Life Sciences Syllabus: (XL-T) Zoology Syllabus
  • GATE 2026 Life Sciences Syllabus: (XL-U) Food Technology Syllabus
  • Books for GATE 2026 Life Sciences Preparation
View More

Latest Updates

GATE 2026 Life Science: Exam Pattern and Marking Scheme

GATE Life Sciences is mainly divided into 4 sections: general aptitude, one compulsory section, chemistry, and two other sections out of 5 optional sections. Candidates can check the GATE 2026 exam pattern and marking scheme for life sciences in detail mentioned below:

Section No. of Questions   Total Marks
General Aptitude 5 of 1 mark 5 of 2 marks 10  15
Compulsory Section [XL-P: Chemistry] 5 of 1 mark 10 of 2 marks 15  25
Optional section 1 [Any one section from Q to U] 10 of 1 mark 10 of 2 marks 20  30
Optional Section 2 [Any one section from Q to U except optional section 1] 10 of 1 mark 10 of 2 marks 20  30
Q:   Can you suggested some good books for GATE CS?
A:

Here are some of the best books for GATE Computer Science and Engineering preparation -

  • Digital Logic and Computer Design by Morris Mano
  • The C Programming Language by Dennis M.Ritchie
  • Introduction to Algorithms by Thomas H.Cormen
  • Database System Concepts Henry Korth
  • Data Communication and Networking Behrouz A.Forouzon

Candidates are advised not to neglect textbooks as well. They are gold. The textbooks cover majority of concepts and fundamentals explained easily. So, start with your standard books first, then use the reference books for further preparation. 

Q:   How to use the standard books for GATE preparation effectively?
A:

Candidates can use GATE books to pick out important terms and formulas and note them for last-minute revision. It is advised to focus more on clearing your concepts than memorising. The GATE exam dates 2026 are February 7, 8, 14, and 15. Candidates must attempting mock test and old question papers.

Q:   What are some good books for GATE EE and EC?
A:

Here are some good books for GATE Electrical Engineering and Electronics and Communication Engineering  -

GATE EE BooksGATE EC Books
Fundamentals of Electric Circuits by Charles K. AlexanderFundamentals of Electric Circuits by Charles K. Alexander & Matthew  N.O. Sadiku
Signals and Systems by A. Anand KumarDigital Logic and Computer Design by M.Morris Mano
Electric Machinery by P.S BhimbraModern Digital Electronics by R.P Jain
Electrical and Electronic Measurements and Instrumentation by AK ShawheyAnalog and Digital Communication Systems by Simon Haykin

Also Read: Detailed GATE 2026 Exam Pattern and Marking Scheme 

Important Links For GATE 2026
GATE 2026 Application Form GATE Previous Year Question Papers
GATE Exam Pattern 2026 GATE 2026 Eligibility Criteria

GATE 2026 Life Sciences Syllabus: Section-wise brief Syllabus

Candidates can check all the topics of each section of the GATE (XL) Life Sciences paper mentioned below, for complete syllabus read below;

Section Topics
XL- P (Chemistry) Atomic Structure and Periodicity, Structure and Bonding, s, p, and d Block Elements, Chemical Equilibria, Electrochemistry, Reaction Kinetics, Thermodynamics, Structure-Reactivity Correlations, Chemistry of Biomolecules
XL- Q (Biochemistry) Biomolecules, Proteins and Enzymes,  Biochemical separation techniques, cell, DNA, Immune system
XL - R (Botany)

Plant Systematics, Plant Anatomy, Plant Development; Cell and Tissue Morphogenesis, Plant Physiology and Biochemistry, Genetics and Genomics, Plant Breeding, Genetic Modification, Genome Editing, Economic and Applied Botany, Plant Pathology , Ecology and Environment 

XL- S (Micro Biology)

Historical Perspective, Methods in Microbiology, Microbial Taxonomy and Diversity, Prokaryotic Cells: Structure and Function, Microbial Growth, metabolism & genetics, Control of Micro-organisms, Microbial Diseases and Host-Pathogen Interaction, Chemotherapy/Antibiotics 

XL - T (Zoology)

Animal diversity & behavior, Evolution, Genetics, Biochemistry and Molecular Biology, Cell Biology, Parasitology and Immunology, Animal Anatomy and Physiology, Development Biology 

XL - U (Food Technology)

Food Chemistry and Nutrition, Food Microbiology, Food Products Technology, Food Engineering 

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GATE 2026 Life Sciences Syllabus: (XL-P) Chemistry Syllabus

Candidates can check the detailed syllabus of each section of the Chemistry section of GATE Life Sciences paper 2025 here;

GATE 2026 Life Sciences Syllabus: (XL-P) Chemistry Syllabus
Sections Topics
Atomic Structure and Periodicity Planck’s quantum theory, wave-particle duality, uncertainty principle, comparison between Bohr’s model and
quantum mechanical model of hydrogen atom, electronic configuration of atoms and ions. Hund’s rule and Pauli’s
exclusion principle. Periodic table and periodic properties: ionization energy, electron affinity, electronegativity and
atomic size
Structure and Bonding Ionic and covalent bonding, MO and VB approaches for diatomic molecules, VSEPR theory and shape of molecules, hybridization, resonance, dipole moment, structure parameters such as bond length, bond angle and bond energy, hydrogen bonding and van der Waals interactions. Ionic solids, ionic radii and lattice energy (Born‐Haber cycle).
HSAB principle
s, p and d Block Elements Oxides, halides and hydrides of alkali, alkaline earth metals, B, Al, Si, N, P, and S. General characteristics of 3d
elements. Coordination complexes: valence bond and crystal field theory, colour, geometry, magnetic properties, and isomerism
Chemical Equilibria Osmotic pressure, elevation of boiling point and depression of freezing point, ionic equilibria in solution, solubility
product, common ion effect, hydrolysis of salts, pH, buffer and their applications. Equilibrium constants (Kc, Kp, and KX) for homogeneous reactions

Electrochemistry

Conductance, Kohlrausch law, cell potentials, EMF, Nernst equation, thermodynamic aspects and their applications.

Reaction Kinetics

Rate constant, order of reaction, molecularity, activation energy, zero, first and second-order kinetics, catalysis and
elementary enzyme reactions. Reversible and irreversible inhibition of enzymes

Thermodynamics

Qualitative treatment of state and path functions, First law, reversible and irreversible processes, internal energy,
enthalpy, Kirchoff equation, heat of reaction, Hess’s law, heat of formation. Second law, entropy and free energy.
Gibbs‐Helmholtz equation, free energy change and spontaneity, Free energy changes from equilibrium constant

Structure-Reactivity Correlations and Organic Reaction Mechanisms

Acids and bases, electronic and steric effects, Stereochemistry, optical and geometrical isomerism, tautomerism,
conformers and concept of aromaticity. Elementary treatment of SN1, SN2, E1, E2 and radical reactions, Hoffmann/Saytzeff rules, addition reactions, Markownikoff rule and Kharasch effect. Elementary hydroboration
reactions. Grignard’s reagents and their uses. Aromatic electrophilic substitutions, orientation effect as exemplified
by various functional groups. Identification of common functional groups by chemical tests

Chemistry of Biomolecules

Amino acids, proteins, nucleic acids and nucleotides. Peptide sequencing by chemical and enzymatic proteolytic
methods. DNA sequencing by chemical and enzymatic methods. Carbohydrates (upto hexoses only). Lipids
(triglycerides only). Principles of biomolecule purification-Ion exchange and gel filtration chromatography.
Identification of these biomolecules and Beier Lambert's law

GATE 2026 Life Sciences Syllabus: (XL-Q)  Biochemistry Syllabus

Candidates can check the detailed syllabus of each section of the Biochemistry section of GATE Life Sciences paper 2026 here;

GATE 2026 Life Sciences Syllabus: (XL-Q) Biochemistry Syllabus
Sections Topics
Section 1 Organization of life; Importance of water; Structure and function of biomolecules: Amino acids, Carbohydrates,
Lipids, Proteins and Nucleic acids; Protein structure, folding/misfolding and function; Myoglobin, Hemoglobin,
Lysozyme, Ribonuclease A, Carboxypeptidase and Chymotrypsin.
Section 2 Enzyme kinetics, regulation and inhibition; Vitamins and Coenzymes; Bioenergetics and metabolism; Generation and utilization of ATP; Metabolic pathways and their regulation: glycolysis, TCA cycle, pentose phosphate pathway,
oxidative phosphorylation, gluconeogenesis, glycogen and fatty acid metabolism; Metabolism of Nitrogen containing compounds: nitrogen fixation, amino acids and nucleotides. Photosynthesis, Calvin cycle.
Section 3 Biochemical separation techniques: Ion exchange, size exclusion and affinity chromatography, centrifugation;
Characterization of biomolecules by electrophoresis; DNA- protein and protein-protein interactions; UV-visible and
fluorescence spectroscopy; Mass spectrometry.
Section 4 Cell structure and organelles; Biological membranes; Action potential; Transport across membranes; Membrane
assembly and Protein targeting; Signal transduction; Receptor-ligand interaction; Hormones and neurotransmitters
Section 5 DNA replication, transcription and translation; DNA damage and repair; Biochemical regulation of gene expression;
Recombinant DNA technology and applications: PCR, site-directed mutagenesis, DNA-microarray; Next-generation sequencing; Gene silencing and editing.
Section 6

Immune System: Innate and adaptive; Cell of the immune system; Active and passive immunity; Complement system; Antibody structure, function and diversity; B cell and T Cell receptors; B cell and T cell activation; Major
histocompatibility complex; Immunological techniques: Immuno-diffusion, immune-electrophoresis, RIA and ELISA,
flow cytometry; monoclonal antibodies and their applications

GATE 2026 Life Sciences Syllabus: (XL-R) Botany Syllabus

Candidates can check the detailed syllabus of each section of the Botany section of GATE Life Sciences paper 2026 here;

GATE 2026 Life Sciences Syllabus: (XL-R) Botany Syllabus
Sections Topics
Plant Systematics Botanical nomenclature, history of plant taxonomy, diversity and classification of plants, APG system of plant
classification; phylogenetics and cladistics, molecular taxonomy and DNA barcoding; Centers for plant taxonomy and herbaria in India.
Plant Anatomy Anatomy of root, stem and leaves, floral organs, embryo and young seedlings, Primary and secondary meristems,
stellar organization, vascular system and their ontogeny, xylem and phloem structure, secondary growth in plants and wood anatomy, plant cell structure and differences from animal cells.
Plant Development; Cell and Tissue Morphogenesis Life cycle of an angiosperm, development of male and female gametophyte; cell fate determination and tissue
patterning; spacing mechanisms in trichomes and stomata. Embryogenesis, organization and function of shoot and root apical meristems. Transition to flowering: photoperiodism and vernalization, ABC model of floral organ
patterning, pollen germination, double fertilization, seed development; Xylem and phloem cell differentiation,
photomorphogenesis; phytochrome, cryptochrome, phototropin. Role of auxin, cytokinin, gibberellins, and
brassinosteroids on plant development.
Plant Physiology and Biochemistry Plant water relations, mechanisms of uptake and transport of water, ions, solutes from soil to plants, apoplastic and symplastic transport mechanisms. Mechanism of stomatal movements, nitrogen metabolism, photosynthesis; C3, C4 and CAM cycles, photorespiration, respiration: glycolysis, TCA cycle and electron transport chain. Plant responses and mechanisms of abiotic stresses including drought, salinity, freezing and heat stress, metal toxicity; role of abscisic acid in abiotic stresses. Structure and function of biomolecules (proteins, carbohydrates, lipids, nucleic acid), enzyme kinetics. Structure and biosynthesis of major plant secondary metabolites (alkaloids, terpenes, phenylpropanoids, flavonoids). Biosynthesis, mechanism of action and physiological effects of auxin, cytokinin, gibberellic acids, brassinosteroid, ethylene, strigolactone, abscisic acid, salicylic and jasmonic acid. Senescence and programmed cell death.
Genetics and Genomics Cell cycle and cell division. Principles of Mendelian inheritance, linkage, recombination, genetic mapping; extrachromosomal inheritance; Introduction to epigenetics; gene silencing- transgene silencing, post-transcriptional gene silencing, miRNA and siRNA; evolution and organization of eukaryotic genome structure, gene expression, gene mutation and repair, chromosomal aberrations (numerical: euploidy and aneuploidy and structural: deletion, duplication, inversion, translocation), transposons. Model organisms for functional genetics and genomics; Introduction to transcriptomics, proteomics and metabolomics.
Plant Breeding, Genetic Modification, Genome Editing Principles, methods – selection, hybridization, heterosis; male sterility, genetic maps and molecular markers, embryo rescue, haploid and doubled haploids, plant tissue culture: micropropagation, embryo culture and in vitro regeneration, somatic embryogenesis, artificial seed, cryopreservation, somaclonal variation, somatic cell hybridization, marker-assisted selection, gene transfer methods viz. direct and vector-mediated, generation of transgenic plants; Introduction to genome editing: CRISPR/Cas9, Cre-Lox system to generate chimeras; plastid transformation; chemical mutagenesis.
Economic and Applied Botany A general account of economically and medicinally important plants- cereals, pulses, plants yielding fibers, timber,
sugar, beverages, oils, rubber, pigments, dyes, gums, drugs and narcotics. Economic importance of algae, fungi, lichen and bacteria. Major Indian cash crops. Effect of industrialization on agricultural botany such as plastic on fiber economy. Genetically modified crops and its regulation, e.g. Bt cotton, Bt brinjal, golden rice etc.
Plant Pathology Nature and classification of plant diseases, diseases of important crops caused by fungi, bacteria, nematodes and
viruses, and their control measures (chemical and biological) mechanism(s) of pathogenesis, resistance: basal,
systemic, induced systemic resistance, gene for gene concept. Molecular detection of pathogens; plant-microbe
interactions: symbionts and mycorrhiza, pathogens and pests. Signaling pathways in plant defence response; salicylic acid (SA) and jasmonic acid (JA) in plant-pathogen and plant-herbivore interaction, necrosis; host-parasitic plant interaction (such as Cuscuta).
Ecology and Environment Ecosystems – types, dynamics, degradation, biogeochemical cycles, ecological succession; food webs and energy flow through ecosystem; vegetation types of the world, Indian vegetation types and biogeographical zones, climate and flora endemism; pollution and global climate change, speciation and extinction, biodiversity and conservation
strategies, ecological hotspots, afforestation, habitat restoration; plant interactions with other organisms; epiphytes, parasites and endophytes.

GATE 2026 Life Sciences Syllabus: (XL-S) Microbiology Syllabus

Q:   Is it enough to rely on the college text books for GATE 2026 preparation?
A:

Honestly, textbooks are not enough for GATE preparation (especially if you are targeting IITs and top colleges). 

Besides your college books, look out for top GATE books recommended by toppers, mentors, and professors. Pick at least one standard book for each subject and start studying it side by side. Apart from that, also practice solving GATE question papers of last 5 to 10 years to get hands on the question difficulty and pattern. 

Stay consistent, prepare a practical timetable and religiously follow it. At the end, it's all upto how you prepare for the exam. 

Q:   What are some good books for GATE Aerospace Engineering (AE)?
A:

Here are some good books for GATE AE that candidates can refer for preparation and revision -

  • Fundamentals of Aerodynamics by JD Anderson
  • Aircraft by GM Sutton and Oscar Biblarz
  • Airplane Performance, Stability, and Control by Perkins and Hage
  • Aerodynamics of Engineering Students by E.L Houghton, P.W Carpenter
  • Introduction to Flight by JD Anderson

Candidates can check the detailed syllabus of each section of the Microbiology section of GATE Life Sciences paper 2026 here;

GATE 2026 Life Sciences Syllabus: (XL-S) Microbiology Syllabus
Sections Topics

Historical Perspective 

Discovery of microbial world; Landmark discoveries relevant to the field of microbiology; Controversy over
spontaneous generation; Role of microorganisms in transformation of organic matter and in the causation of diseases

Methods in Microbiology 

Pure culture techniques; Principles of microbial nutrition; Enrichment culture techniques for isolation of
microorganisms; antigen and antibody detection methods for microbial diagnosis; Light-, phase contrast-,
fluorescence- and electron-microscopy; PCR, real-time PCR for quantitation of microbes; Next generation sequencing technologies in microbiology

Microbial Taxonomy and Diversity 

Bacteria, Archea and their broad classification; Eukaryotic microbes: Yeasts, molds and protozoa; Viruses and their classification; Molecular approaches to microbial taxonomy and phylogeny.

Prokaryotic Cells: Structure and Function 

Prokaryotic Cells: Cell walls, cell membranes and their biosynthesis, mechanisms of solute transport across
membranes, Flagella and Pili, Capsules, Cell inclusions like endospores and gas vesicles; Bacterial locomotion,
including positive and negative chemotaxis.

Microbial Growth

Definition of growth; Growth curve; Mathematical expression of exponential growth phase; Measurement of growth
and growth yields; Synchronous growth; Continuous culture; Effect of environmental factors on growth; Bacterial
biofilm and biofouling.

Control of Micro-organisms 

Disinfection and Sterilization: Principles, methods and assessment of efficacy.

Microbial Metabolism

Energetics: redox reactions and electron carriers; Electron transport and oxidative phosphorylation; An overview of
metabolism; Glycolysis; Pentose-phosphate pathway; Entner-Doudoroff pathway; Glyoxalate pathway; The citric acid cycle; Fermentation; Aerobic and anaerobic respiration; Chemolithotrophy; Photosynthesis; Calvin cycle;
Biosynthetic pathway for fatty acids synthesis; Common regulatory mechanisms in synthesis of amino acids;
Regulation of major metabolic pathways.

Microbial Diseases and Host-Pathogen Interaction

Normal microbiota; Classification of infectious diseases; Reservoirs of infection; Nosocomial infection; Opportunistic infections; Emerging infectious diseases; Mechanism of microbial pathogenicity; Nonspecific defense of host; Antigens and antibodies; Humoral and cell-mediated immunity; Vaccines; passive immunization; Immune deficiency; Human diseases caused by viruses, bacteria, and pathogenic fungi.

Chemotherapy/Antibiotics 

General characteristics of antimicrobial drugs; Antibiotics: Classification molecular mechanism of mode of action and resistance; Antifungal and antiviral drugs.
Microbial Genetics

 

Types of mutation; UV and chemical mutagens; Selection of mutants; Ames test for mutagenesis; Bacterial genetic
system: transformation, conjugation, transduction, recombination, plasmids, transposons; DNA repair; Regulation of gene expression: repression and induction; Operon model; Bacterial genome with special reference to E.coli; Phage λ and its life cycle; RNA ; mutation in virus genomes, virus recombination and reassortment; Basic concept of microbial genomics.
Microbial Ecology Microbial interactions; Carbon, sulphur and nitrogen cycles; Soil microorganisms associated with vascular plants;
Bioremediation; Uncultivable microorganisms; basic concept of metagenomics and metatranscriptomics.

GATE 2026 Life Sciences Syllabus: (XL-T) Zoology Syllabus

Candidates can check the detailed syllabus of each section of the zoology section of the GATE Life Sciences paper 2025 here;

GATE 2026 Life Sciences Syllabus: (XL-T) Zoology Syllabus
Sections Topics
Animal Diversity Distribution, systematics and classification of animals, phylogenetic relationships (based on classical and
molecular phylogenetic tools).
Evolution Origin and history of life on earth, theories of evolution, natural selection, adaptation, speciation
Genetics Basic Principles of inheritance, molecular basis of heredity, sex determination and sex-linked characteristics,
cytoplasmic inheritance, linkage, recombination and mapping of genes in eukaryotes, population genetics, genetic
disorders, roles of model organisms in understanding genetic principles
Biochemistry and Molecular Biology Nucleic acids, proteins, lipids and carbohydrates; replication, transcription and translation, Krebs cycle, glycolysis,
enzyme catalysis, hormones and their actions, roles of vitamins and minerals
Cell Biology Basic principles of cellular microscopy, structure of cell, cytoskeletal organization, cellular organelles and their
structure and function, cell cycle, cell division, chromosomes and chromatin structure
Gene expression in Eukaryotes Eukaryotic genome organization and regulation of gene expression, transposable elements
Animal Anatomy and Physiology Comparative physiology, the respiratory system, Muscular system, circulatory system, digestive system, the nervous system, the excretory system, the endocrine system, the reproductive system, the skeletal system
Parasitology and Immunology Nature of parasite, host-parasite relation, protozoan and helminthic parasites, the immune response, cellular and
humoral immune response
Development Biology Gametogenesis, Embryonic development, cellular differentiation, organogenesis, metamorphosis, Model organisms used in developmental biology, genetic and molecular basis of development, stem cells
Ecology The ecosystem, Animal distribution, ecological niche and its contribution to ecological diversity, the food chain,
population dynamics, species diversity, zoogeography, biogeochemical cycles, conservation biology, ecotoxicology
Animal Behaviour Type of behaviours, courtship, mating and territoriality, instinct, learning and memory, social behaviour across the
animal taxa, communication, pheromones, evolution of behavior in animals

GATE 2026 Life Sciences Syllabus: (XL-U) Food Technology Syllabus

Candidates can check the detailed syllabus of each section of the food technology section of GATE Life Sciences paper 2025 here;

GATE 2026 Life Sciences Syllabus: (XL-U) Food Technology Syllabus
Sections Topics
Food Chemistry and Nutrition Carbohydrates: Structure and functional properties of mono-, oligo-, & poly- saccharides including starch, cellulose, pectic substances and dietary fibre, gelatinization and retrogradation of starch. Proteins: classification and structure of proteins in food, biochemical changes in post-mortem and tenderization of muscles. Lipids: classification and structure of lipids, rancidity, polymerization and polymorphism. Pigments: carotenoids, chlorophylls, anthocyanins, tannins and myoglobin. Food flavours: terpenes, esters, aldehydes, ketones and quinines. Enzymes: specificity, simple and inhibition kinetics, coenzymes, enzymatic and non- enzymatic browning. Nutrition: balanced diet, essential amino acids and essential fatty acids, protein efficiency ratio, water soluble and fat-soluble vitamins, role of minerals in nutrition, co-factors, anti-nutrients, nutraceuticals, nutrient deficiency diseases. Chemical and biochemical changes: changes occur in foods during different processing.
Food Microbiology Characteristics of Microorganisms: Morphology of bacteria, yeast, mold and actinomycetes, spores and vegetative
cells, gram-staining. Microbial growth: growth and death kinetics, serial dilution technique. Food spoilage: spoilage
microorganisms in different food products including milk, fish, meat, egg, cereals and their products. Toxins from
microbes: pathogens and non-pathogens including Staphylococcus, Salmonella, Shebelle, Escherichia, Bacillus,
Clostridium, and Aspergillum genera. Fermented foods and beverages: curd, yoghurt, cheese, pickles, soya-sauce, sauerkraut, idly, dose, vinegar, alcoholic beverages and sausage
Food Products Technology Processing Principles: Thermal processing, chilling, freezing, dehydration, addition of preservatives and food
additives, irradiation, fermentation, hurdle technology, intermediate moisture foods. Food pack aging and storage:
packaging materials, aseptic packaging, controlled and modified atmosphere storage. Cereal processing and products: milling of rice, wheat, and maize, parboiling of paddy, bread, biscuits, extruded products and ready to eat breakfast cereals. Oil processing: expelling, solvent extraction, refining and hydrogenation. Fruits and vegetables processing: extraction, clarification, concentration and packaging of fruit juice, jam, jelly, marmalade, squash, candies, tomato sauce, ketchup, and puree, potato chips, pickles. Plantation crops processing and products: tea, coffee, cocoa, spice, extraction of essential oils and oleoresins from spices. Milk and milk products processing: pasteurization and sterilization, cream, butter, ghee, ice- cream, cheese and milk powder. Processing of animal products: drying, canning, and freezing of fish and meat; production of egg powder. Waste utilization: pectin from fruit astes, uses of by-products from rice milling. Food standards and quality maintenance: FPO, PFA, A-Mark, ISI, HACCP, food plant sanitation and cleaning in place (CIP)
Food Engineering Mass and energy balance: Momentum transfer: Flow rate and pressure drop relationships for Newtonian fluids flowing through pipe, Reynolds number. Heat transfer: heat transfer by conduction, convection, radiation, heat exchangers. Mass transfer: molecular diffusion and Flick's law, conduction and convective mass transfer, permeability through single and multilayer films. Mechanical operations: size reduction of solids, high pressure homogenization, filtration, centrifugation, settling, sieving, mixing & agitation of liquid. Thermal operations: thermal sterilization, evaporation of liquid foods, hot air drying of solids, spray and freeze-drying, freezing and crystallization. Mass transfer operations: psychometric, humidification and dehumidification operations

Books for GATE 2026 Life Sciences Preparation

Candidates can check the suggested books for the preparation of each section of the GATE 2026 Life Sciences (XL) paper;

Section Suggested Books
(XL-P) Chemistry
  • Physical Chemistry by Ira N. Levine
  • Organic Chemistry by Jonathan Clayden, Nick Greeves, Stuart Warren
  • Principles of Inorganic Chemistry by B.R.Puri, L.R. Sharma, K.C.Kalia
(XL-Q)  Biochemistry
  • Biochemistry by Voet D. and Voet J.G
  • Essential Immunology by Ivan M. Roitt
  • Principles of Gene Manipulation and Genomics-S.B. Primrose
  • Principles and Techniques of Biochemistry and Molecular Biology by Wilson/Walker
  • The Cell: A Molecular Approach by Geoffrey M. Cooper,
(XL-R) Botany
  • A Textbook Of Botany Vol-3 by S.N Pandey
  • Plant Physiology by Frank B. Salisbury
  • Basic Ecology: Fundamentals of Ecology by Eugene P. Odum
  • Plant Pathology by R.S. Mehrotra
  • Hill Economic Botany by O.P. Sharma
  • Modern Botany by M.P. Kaushik
(XL-S) Microbiology
  • Microbiology(fifth edition) by Micheal Pelczar, E.C.S Chan, Noel R. Krieg
  • Microbiology by Prescott
  • A and P Textbook of Microbiology by R. Ananthanarayan and Arti Kapil
(XL-T) zoology
  • Animal Biology  by Jurd
  • Modern Text Book Of Zoology Vertebrates by R.L.Kotpal
  • General Zoology by Guthrie Mary Jane and Anderson John M
  • Invertebrate Zoology by N.C Nair
  • Animal Physiology by Richard W. Hill
  • Mammology: Adaptation, Diversity, Ecology by George A. Feldhamer
(XL-U) Food Technology
  • Food Technology and Nutrition by Sunetra Roday
  • Advanced textbook on Food and Nutrition Vol. 1 by Dr M. Swaminathan
  • Technology of Food Product Development by Samuel A. Matz
  • Food Science and Processing Technology Biochemistry Of Food and Nutrition by Neha Publishers and Distributors
  • The Technology of Food Preservation by Desrosier
  • Agricultural Processing and Food Technology by Suresh Chandra, Goyal&Kumari

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About the Author
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UPASANA PRADHAN
Assistant Manager- Editorial

Upasana Pradhan is an Mtech graduate in Electronics and Communication Engineering from DTU who specialises in curating postgraduate and undergraduate engineering entrance exam content, such as GATE, TS PGECET, KCET,

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  • Mobile number and email address

P

Piyush Shukla

Contributor-Level 7

Answered 4 days ago

Candidates who have qualified GATE exam will be eligible for GATE COAP counselling. The counselling offer admission to IITs. The admission counselling registration is online and is done in multiple rounds depending on seat availability.

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Abhay Choudhury

Contributor-Level 7

Answered a week ago

GATE CCMT counselling is expected to start in June/July. Students who have qualified in GATE exam 2026 and want to take admission in NITs and other engineering colleges must register and participate in CCMT. The dates will be updated here for each round.

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Bhumika Uniyal

Contributor-Level 7

Answered a week ago

GATE 2026 COAP counselling dates will be released in June/July after the announcement of results. Students who want to take admission in IITs must register through COAP for counselling.

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Taru Shukla

Contributor-Level 7

Answered a week ago

GATE 2026 Electronics and Communication paper will be conducted on February 15 in the first shift. Students who have regsitered for EC paper must download their admit card on January 2.

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Himanshi Choudhury

Contributor-Level 7

Answered a week ago

IIT Guwahati will conduct GATE CSE exam on February 8, 2026 in two shifts. The CS1 will be held in first shift and CS2 in second shift. The exam timings can be checked below-

  • CS1 paper - 9:30 am to 12:30 pm
  • CS2 paper- 2:30 am to 5:30 pm

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Aishwarya Uniyal

Contributor-Level 7

Answered a week ago

Students can check GATE exam dates on IIT GATE Guwahati website- gate2026.iitg.ac.in. The dates have been released for GATE admit card, branch-papers, and results. Dates for answer key and counselling will be made available soon.

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Shiksha Hazarika

Contributor-Level 7

Answered a week ago

The Panjab University accepts the GATE cutoff score for admission to the ME/ M.Tech courses. The GATE Cutoff 2023 ranged from 363 to 387 score for admission for the General category under the All India quota. The toughest and the easiest specialisation was M.E. in Electronics and Communication Engin

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Neerja Rohatgi

Contributor-Level 10