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NSEB Syllabus 2025 And Exam Pattern

The National Standard Examination in Biology (NSEB) Syllabus is framed to assess students' knowledge in biology upto the senior secondary level, equivalent to CBSE Class 11 and 12. Here we have shared the comprehensive details of the NSEB Syllabus 2025 and Exam Pattern.
authorImagePriyanka Dahima6 Apr, 2025
NSEB Syllabus 2024

NSEB Syllabus 2025: The NSEB Examination is a part of NSE (National Standard Examination) which organizes National Science Competitions for the promotion of the students and provides an opportunity for them to compete in International Olympiad competitions.

NSEB exams are held once a year to assess the Science knowledge of students and give them an opportunity to compete in international Olympiads. Students who qualify for this NSEB exam will qualify for the INBO (Indian National Biology Olympiad) competition. In this article you will find all the information about the NSEB Syllabus 2025.

NSEB Syllabus 2025

NSEB Exam 2025 is tentatively scheduled in November 2025 and the exact date will be announced by IAPT (Indian Association of Physics Teachers) in due course. The National Standard Examination in Biology (NSEB) Syllabus is similar to CBSE, ICSE and other state boards or any similar board that follows a secondary curriculum. However, basic tutorial guidelines for NSEB Syllabus 2025 are provided below. The Indian Association of Physics Teachers is in charge of this NSEB Examination. This exam is taken by around 30,000 students, the majority of whom are in Class 12. Students must go through the details of the NSEB Exam Syllabus 2025.

NSEB Exam Syllabus 2025

This will help avoid any issues that may arise during the selection process. We will guide you through the NSEB Exam Format, question types, and effective strategies. In the below table, we have provided an overview of the NSEB Syllabus 2025.
NSEB Syllabus 2025 Overview
Organization IAPT (Indian Association of Physics Teachers) in collaboration with HBCSE (Homi Bhabha Centre for Science Education),
Exam Name National Standard Examination in Biology (NSEB 2025)
NSEB 2025 Exam Date November 2025
Mode of Exam Pen and Paper Mode
Duration of NSEB Exam 2 Hours
Type of Questions Multiple Choice Questions
Official Website https://www.iapt.org.in/

NSEB Syllabus 2025

NSEB syllabus is same as CBSE class 11 and 12 syllabus. Students should be well aware of NSEB syllabus to plan their study plan well. It helps students score high in NSEB exams and qualify for International Olympiads. Below is the list of chapters and topics covered in NSEB Syllabus 2025:
NSEB Syllabus 2025
Chapters Topics Included
Diversity Of Living
  • The Living World
  • Biological Classification
  • Plant Kingdom
  • Animal Kingdom
Structural Organization in Animals and Plants
  • Morphology and Anatomy of Flowering Plants
  • Structural Organisation in Animals
Cell: Structure and Function
  • Cell theory and cell as the basic unit of life
  • Biomolecules
  • Cell Cycle and Cell Division
Plant Physiology
  • Transport In Plants
  • Mineral Nutrition
  • Photosynthesis and Respiration in Higher Plants
  • Plant – Growth and Development
Human Physiology
  • Digestion & Absorption
  • Breathing & Exchange Of Gas
  • Body Fluids and Circulation
  • Excretory Products and Their Elimination
  • Locomotion and Movement
  • Neural Control and Coordination
  • Chemical Coordination and Integration
Reproduction In Organisms
  • Types, modes, and the process of reproduction
  • Asexual reproduction
  • Sexual reproduction
  • Pre-fertilization events
  • Fertilization and post-fertilization events
Sexual Reproduction in Flowering Plants
  • Flower Structure
  • Morphology Of Flower
  • The process of sexual reproduction in flowering plants.
  • Development of male and female gametophytes
  • Pollination
  • Double fertilization
  • Post fertilization Events-Development of endosperm and embryo
  • Development and significance of seed and formation of fruit
Human Reproduction
  • Male and female reproductive systems
  • Microscopic diagram elaborating anatomy of testis and ovary
  • Gametogenesis − Spermatogenesis, Oogenesis
  • Menstrual cycle
  • Fertilization, implantation pregnancy, and placenta formation
  • Parturition and Lactation
Reproductive Health
  • The need for reproductive health
  • Prevention of sexually transmitted diseases (STD)
  • Birth control − need and methods, contraception, Medical Termination of Pregnancy (MTP)
  • Amniocentesis
  • Infertility and assisted reproductive technologies
Principles Of Inheritance And Variation
  • Covers the topics of Genetics and Evolution
  • Similarity and variation between the parents and offspring
  • Mendel”s law of inheritance
  • Sex determination
  • Mutations genetic disorders
Molecular Basis of Inheritance
  • DNA as genetic material
  • Structure of DNA and RNA
  • DNA- packaging, replication, fingerprinting
  • Central dogma, Transcription, genetic code, translation
  • Gene expression and regulation − Lac Operon
  • Genome and human genome project
Evolution
  • Darwin’s contribution
  • Modern Synthetic Theory of Evolution
  • Mechanism of evolution − Variation, Natural Selection and types of natural selection
  • Gene flow and genetic drift
  • Hardy – Weinberg’s Principle
  • Adaptive Radiation
Human Health And Diseases
  • Maintenance of optimum health
  • Diseases- types, treatment, and prevention
  • Immunity and its types
  • Adolescence, drug and alcohol abuse
Strategies for Enhancement in Food Production
  • Improvement in food production techniques
  • Plant breeding, Tissue culture
  • Single-cell protein
  • Biofortification, Apiculture
  • Animal husbandry
Microbes in Human Welfare
  • In household food processing and industrial production
  • Sewage treatment
  • Energy generation
  • Biofertilizers
  • Antibiotics- Production and judicious use
Biotechnology – Principles and Processes
  • Principles and processes involved in biotechnology like genetic engineering (Recombinant DNA technology).
Biotechnology and Its Applications
  • The application processes of Biotechnology in health and agriculture
Organisms and Populations
  • Organisms and environment- Habitat, Niche, Population and Ecological adaptations
  • Population interactions- Mutualism, Competition, Predation, Parasitism
  • Population attributes
Ecosystem
  • Ecological Patterns, components, productivity, decomposition
  • Energy flow in the ecosystem
  • Pyramids of number, biomass, energy
  • Carbon and Phosphorous Nutrient cycles
  • Ecological succession and services
Biodiversity and Its Conservation
  • Concept, Patterns, Importance, and loss of biodiversity
  • Biodiversity conservation ways
Environmental Issues
  • Air and water pollution and its control methods
  • Agrochemicals and their effects
  • Solid waste management
  • Radioactive waste management
  • Greenhouse effect and climate change
  • Ozone layer depletion
  • Deforestation

NSEB Exam Pattern 2025 

To crack a competitive exam, it is essential to have a clear understanding of the exam pattern. Before starting the NSEB exam preparation, students should familiarize themselves with the NSEB Exam Pattern.
NSEB Exam Pattern 2025
Duration of Exam Two hours
Test Paper Level/ Syllabus Is broadly equivalent to senior secondary level (up to and including Class XII) of CBSE India
Test Medium/ Language Question paper will be in English & Hindi (Option during registration). Type of questions – Objective type with multiple choices
Sections Two parts
Total Number of Questions 60 MCQs
Total Marks 216 Marks

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NSEB Syllabus 2025 Tips to Prepare 

  • Exploring your past skills, successes and disappointments, learning about your strengths and weaknesses will play a vital role in your preparation.
  • Collect your study material and look for the latest information on biology topics that can be discussed for the exam.
  • Make a study plan and consider how much time you need to complete each subject without overestimating your abilities. It is important that your approach is specific.
  • Stick to your schedule and start studying, don't play with distractions. Your confidence will increase when you stick to your plan.
  • After reading and completing the exam papers with your time, decide the exam date and revise the exam papers and previous year questions.
  • Compete with your strengths, that is, if a subject is your strength then the number of questions asked in the question paper will be determined.
  • Keep updating the NSEB curriculum.

 

Check: How to Prepare for NSEB?

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NSEB Syllabus 2025 FAQs

Q1. Where can I get the NSEB Syllabus 2025?

Ans. You can get the comprehensive and accurate details of the NSEB Syllabus 2025 at the PW Blog.

Q2. What is the Syllabus of NSEB 2025?

Ans. Students should go through the NSEB 2025 syllabus as they get ready for NSEB 2025. The NSEB Syllabus comprises the Biology syllabus for classes 11 and class 12.

Q3. What is the mode and duration of NSEB Exam 2025?

Ans. The NSEB Exam 2025 is conducted through Pen and Paper Mode and duration of National Standard Examination in Biology (NSEB) is 2 hours or 120 minutes.

Q4. What is the difficulty level of NSEB 2025?

Ans. The difficulty level of NSEB Olympiad Exam 2025 will be moderate as per the previous year trend.

Q5. How many questions are asked in the NSEB Exam?

Ans. A total of 60 Mulitple Choice Questions are asked in the NSEB Exam for 216 marks.
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