Careers360 Logo
ask-icon
share
    GATE Microbiology Syllabus 2027 (Out) - Download Topics Wise Syllabus PDF

    GATE Microbiology Syllabus 2027 (Out) - Download Topics Wise Syllabus PDF

    K Guna SahitiUpdated on 21 Jul 2026, 12:27 PM IST

    GATE 2027 Microbiology Syllabus (XL3): IIT Madras has published the GATE 2027 Microbiology syllabus on the official website, gate2027.iitm.ac.in. This year, the GATE XL3 syllabus 2027 has been revised. Changes are in Methods of Microbiology, Microbial Growth, Microbial Genetics sections etc. Aspirants can download the GATE syllabus PDF from this page. The GATE 2027 exam for Microbiology exam will be conducted on one of the 6 exam days. Candidates can check the GATE Microbiology syllabus 2027 here in this article.
    Direct Link for the GATE 2027 Microbiology Syllabus (XL3)

    This Story also Contains

    1. GATE Microbiology Syllabus 2027 (XL3)
    2. GATE Microbiology Exam Pattern 2027
    3. GATE Preparation Tips 2027
    GATE Microbiology Syllabus 2027 (Out) - Download Topics Wise Syllabus PDF
    GATE 2027 Microbiology Syllabus

    The Graduate Aptitude Test in Engineering will be held for three hours. The GATE question paper will be prepared based on the syllabus of Microbiology. Along with the GATE Microbiology syllabus, candidates must check the exam pattern to plan their preparation. The GATE Microbiology syllabus 2027 mostly includes topics from the UG level.

    GATE Microbiology Syllabus 2027 (XL3)

    The Indian Institute of Technology Madras has released the GATE 2027 Microbiology syllabus (XL3) on the official website. The GATE Microbiology syllabus 2027 covers topics such as Historical Perspective, Methods in Microbiology, Microbial Growth, Control of Micro-organisms, Chemotherapy/Antibiotics and more. The detailed syllabus for GATE Microbiology is provided below.

    Integral University M.Tech Admissions 2026

    NAAC A+ Accredited | Highest CTC 45 LPA | Scholarships Available

    UEM Jaipur M.Tech Admissions 2026

    1st in NPTEL program of 6 IITs | Highest CTC 72 LPA | Scholarships to meritorious students

    GATE Syllabus for Microbiology 2027

    Syllabus

    Topics

    GATE Microbiology Syllabus for Historical Perspective


    • Discovery of microbial world

    • Landmark discoveries relevant to the field of microbiology

    • Controversy over spontaneous generation

    • Role of microorganisms in the transformation of organic matter and the causation of diseases.

    GATE Microbiology syllabus for Methods in Microbiology


    • Pure culture technique

    • Disinfection and Sterilization: principles, methods and assessment of efficac

    • 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

    • CRISPR-Cas

    GATE Microbiology Syllabus 2027 for 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

    GATE Microbiology Syllabus for Prokaryotic Cells: Structure and Function

    • 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

    GATE Microbiology Syllabus Microbial Growth

    • Definition of growth

    • Growth curve

    • Mathematical expression of the exponential growth phase

    • Measurement of growth and growth yields

    • Synchronous growth

    • Continuous culture

    • Effect of environmental factors on growth

    • Bacterial biofilm and biofouling

    • Sporulation

    • Quorum sensing

    GATE Microbiology syllabus for 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

    GATE Microbiology syllabus for 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

    GATE Microbiology syllabus for Control of Micro-organisms: Chemotherapy/Antibiotics

    • General characteristics of antimicrobial drugs

    • Antibiotics: Classification, molecular mechanism of mode of action and resistance

    • Antifungal and antiviral drugs

    GATE Microbiology syllabus for 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

    • Cell cycle and cell division in lower eukaryotes

    GATE Microbiology syllabus for Microbial Ecology

    • Microbial interactions

    • Carbon, sulphur and nitrogen cycles

    • Soil microorganisms associated with vascular plants

    • Bioremediation

    • Uncultivable microorganisms

    • Basic concept of metagenomics and metatranscriptomics

    Related links:

    GATE 2027 Syllabus (All Subjects)
    Download the GATE 2027 subject-wise syllabus PDF and prepare with the latest topics, section-wise weightage, and exam pattern for your chosen discipline.
    Check Now

    GATE Microbiology Exam Pattern 2027

    The authority has released the GATE 2027 exam pattern for Microbiology on the official website. Candidates must familiarize themselves with the GATE Microbiology syllabus and exam pattern. It will include details such as the marking scheme, types of questions, exam duration, mark distribution, and more.

    GATE 2027 Microbiology Exam Pattern

    ParticularsPattern

    Mode of exam

    Computer Based Test (CBT)

    Test Duration

    3 hours

    Sections

    General Aptitude (GA), Candidates Selected Subjects, Compulsory Subject

    Types of questions

    Multiple Choice Questions (MCQs)

    Multiple Select Questions (MSQs)

    Numerical Answer Type (NAT)

    Distribution of Marks

    General Aptitude - 15 marks

    Compulsory Section - 25 marks

    Subject marks - 60 marks

    Total Marks

    100 marks

    Marking Scheme

    • 19 questions carrying a total of 30 marks
    • 8 questions carrying 1 mark each
    • 11 questions carrying 2 marks each

    Negative Marking

    • For a 1 mark MCQ, 1/3 mark will be deducted for a wrong answer.

    • For a 2-mark MCQ, 2/3 mark will be deducted for a wrong answer.

    Related links:

    Amity University | M.Tech Admissions

    Asia’s only university to be awarded the highest accreditation by WASC, USA and by the Quality Assurance Agency for Higher Education (QAA), UK

    Maharishi Markandeshwar University M.Tech Admissions 2026

    NAAC A++ Grade | 42 LPA-Highest Salary | 1500+ annual placements

    GATE Preparation Tips 2027

    Candidates can follow the following preparation tips for planning the preparation for the GATE Microbiology syllabus.

    • Get familiar with the GATE Microbiology syllabus and paper pattern

    • Create a proper study timetable distributing equal time for all topics.

    • Gather resources such as study materials, previous question papers, and books

    • Make handy notes for formulas

    • Regular revision is important

    • Attempt the GATE mock test

    • Solve previous year question paper

    Frequently Asked Questions (FAQs)

    Q: Is the GATE 2027 syllabus released?
    A:

    Yes, the GATE syllabus 2027 has been released on the official website.

    Q: How can I check GATE Life Science Syllabus 2027?
    A:

    Candidates can check the GATE 2027 Life Science Syllabus on the official website.

    Q: Can a zoology student give a GATE exam?
    A:

    Yes, Candidates can apply for the GATE Zoology exam on the official website.

    Articles
    |
    Certifications By Top Providers
    Basic Programming using Python
    Via Indian Institute of Technology Bombay
    Basic Electronics
    Via Indian Institute of Technology Bombay
    Data Analytics with Python
    Via Indian Institute of Technology Roorkee
    Bioengineering An Interface with Biology and Medicine
    Via Indian Institute of Technology Bombay
    City and Metropolitan Planning
    Via School of Planning and Architecture Delhi
    Online MCA
    Via Graphic Era University Online
    Explore Top Universities Across Globe

    Questions related to GATE

    On Question asked by student community

    Have a question related to GATE ?

    Dear Student,

    Admission rules for OCI candidates may vary depending on the institution and programme. As an Overseas Citizen of India (OCI) cardholder, you can apply for GATE 2027 under the international/foreign candidate section if you reside or have completed your degree outside India, though you can select your appropriate

    Hello Student, your CSE background and 4 years of automotive experience can be useful for an Embedded Systems specialization. However, for an M.Tech , I would be cautious about choosing a fully online/distance programme, as recognition and mode of delivery depend on the university and applicable regulatory rules. I can

    Hello Student, Please share your B.Tech branch, percentage/CGPA, GATE status and budget, and I can suggest the most suitable colleges for you.

    Hello Student,

    You can check the GATE Food Technology previous year question papers on Careers360. Food Technology is covered under XE-G (Engineering Sciences) and XL-U (Life Sciences).
    https://engineering.careers360.com/articles/gate-question-papers

    Hello Student, if you are planning to appear for GATE 2027, the registration is scheduled to start on 27 August 2026. The regular last date is 27 September 2026, and you can submit the form with a late fee up to 5 October 2026. The exam will be held on