The NSEB (National Standard Examination in Biology) will be held on 23rd November 2025.
NSEB Previous Year Question Papers : NSEB Question Paper with Solutions has answers to all the questions in the previous paper. The NSEB (National Standard Examination in Biology) will help students face the NSEB 2025 which will be held on 23rd November 2025.
Most Important Questions of NSEB
Students will get step-by-step answers and explanations of NSEB question papers. The answers are designed by highly experienced experts and students can use them to estimate the marks they can score in the exam. Scroll down our page to get the details of the NSEB Previous Year Question Paper.
Those who are preparing for the Olympiad exams can also go through these question papers, along with solutions, to analyze the types of questions asked in the NSEB exam. Experienced teachers have compiled the solutions and students can refer to them to check the marks they will get in the NSEB 2025 exam.
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The Exam Pattern and structure of the NSEB is a unique program, similar to the National Standardized Examination in Basic Science (NSEJS). Focus topic in NSEB exam - Biology. Get the details of the NSEB PYQ Pattern 2025 below.
NSEB PYQ Pattern 2025 | |
Particulars |
Specifications |
Exam Subject |
Biology |
Duration |
2 Hours |
Medium |
English, Hindi (Optional) |
Maximum Number of Questions |
80 |
Maximum Marks |
240 |
Students are required to take note of the syllabus of the NSEB Exam Topics that are included within. In the following table, we are sharing the Biology syllabus of Class 11 and 12:
NSEB Exam Topics | |
Chapters |
Important Topics |
1. Diversity of Living |
Plant Kingdom Animal Kingdom The Living World Classification in Biology |
2. Structural Organization in Animals and Plants |
Structural Organization in Animals and Plants Morphology of Plants Anatomy of Plants |
3. Cell: Structure and Function |
Cell Theory Cell Division Cell Cycle Biomolecules |
4. Plant Psychology |
Growth and development of Plants Respiration, Transportation, Photosynthesis in Plants. |
5. Human Psychology |
Neural Coordination and chemical coordination Breathing, body fluids, digestion, excretion, circulation of body fluids, locomotion. |
6. Reproduction in Organisms |
Process of reproduction and its types Asexual and Sexual Reproduction Fertilisation |
7. Reproduction in Flowering Plants |
Gametophytes Structure of Flower Sexual reproduction in flowering plants Development of gametophytes- female and male Pollination Fertilisation |
8. Human Reproduction |
Implantation Placenta formation and pregnancy Menstrual cycle Gametogenesis Oogenesis Female and male reproductive systems Spermatogenesis Anatomy of testes and ovary |
9. Reproductive Health |
Reproductive technologies Prevention of sexually transmitted diseases Necessity for reproductive health Infertility Medical termination of pregnancy Contraception Amniocentesis |
10 Principles of Inheritance and Variation |
Sex determination Similarity between parents and offsprings Variation between parents and offsprings Evolution Mendel’s law of Inheritance Genetics Genetic Disorders |
11. Molecular Basis of Inheritance |
Structure of DNA, RNA, DNA- Replication Genome Gene expression Gene regulation Genetic code Transcription Genetic translation |
12. Evolution |
Mechanism of Evolution Darwin’s theory Adaptive radiation Natural selection and its types Hardy- Weinberg’s principle Modern synthetic theory of evolution |
13. Human Health and Diseases |
Types of diseases and their prevention Adolescence Maintenance of health Drug abuse Alcohol abuse |
14. Strategies for Enhancement in Food Production |
Plant breeding Food production technique- drawbacks and improvement Apiculture Single-cell protein Animal Husbandry Tissue culture Biofortification |
15. Microbes in Human Welfare |
Biofertilizers Industrial production Antibiotics Energy generation Household food processing Sewage treatment |
16.Biotechnology |
Biotechnology principles Genetic Engineering Processes involved |
17. Biotechnology and its Application |
Application processes involved |
18. Organisms and Populations |
Environment Ecological adaptations Organisms habitat Population Predation Mutualism Parasitism Population Interactions |
19. Ecosystem |
Flow of energy in ecosystem Succession and services (ecological) Biomass energy Decomposition Patterns of Ecosystem Carbon cycles Nutrient cycles Phosphorus cycles |
20. Biodiversity and its Conservation |
Introduction to the concept Biodiversity- importance, conservation and loss |
21. Environmental Issues |
Greenhouse effect Ozone layer depletion Solid waste management Climate change Deforestation Air pollution Water pollution Radioactive waste management |
Below are some of the benefits that NSEB aspirants will enjoy by downloading the previous question papers.
Getting the NSEB answer keys is also important for a successful career. Candidates can find the correct answers to the test questions by using the answer keys. Students are given a self-assessment tool that allows them to evaluate their answers and identify areas of difficulty. NSEB answer keys are great for learning the correct techniques and strategies to solve math problems. By sharing answers and answer keys, candidates can refine their thinking and improve their problem-solving skills.