ISC Class 12 Biology Syllabus 2025–26 | CISCE Curriculum
🧬 ISC Class 12 Biology Syllabus (2025–26)
Class: XII
Subject: Biology
Board: ISC (Indian School Certificate)
Governing Body: CISCE (Council for the Indian School Certificate Examinations)
📊 Question Pattern & Marking Scheme (ISC Class 12 – Biology)
Theory Examination: 70 Marks
Practical Examination / Internal Assessment: 30 Marks
Total: 100 Marks
Duration (Theory): 3 Hours
Theory Paper Structure:
- Section A: Very Short Answer Questions (VSA)
- Objective and concept-based questions from the entire syllabus
- Section B: Short Answer Questions (SA)
- Application-based and explanatory questions
- Section C: Long Answer Questions (LA)
- Descriptive, analytical, and diagram-based questions with internal choices
Practical / Internal Assessment (30 Marks):
- Practical experiments and laboratory work
- Practical record and biological drawings
- Project work
- Viva voce
✨
The ISC Class 12 Biology syllabus 2025–26, prescribed by CISCE, offers an in-depth understanding of life processes, biological systems, and their applications in health, environment, and biotechnology. The curriculum emphasizes conceptual clarity, experimental skills, analytical thinking, and real-life relevance, preparing students for board examinations, medical entrance tests, and higher studies in biological and life sciences.
📚 ISC Class 12 Biology Syllabus 2025–26 (Unit-wise)
| Unit | Chapter / Topic | Learning Outcomes |
|---|---|---|
| Unit 1 | Reproduction in Organisms | Understand asexual and sexual reproduction in plants and animals. |
| Unit 2 | Human Reproduction | Study human reproductive system, gametogenesis, menstrual cycle, and pregnancy. |
| Unit 3 | Reproductive Health | Learn methods of contraception, infertility treatment, and reproductive health awareness. |
| Unit 4 | Principles of Inheritance and Variation | Understand Mendelian genetics, inheritance patterns, and genetic disorders. |
| Unit 5 | Molecular Basis of Inheritance | Study DNA structure, replication, transcription, translation, and genetic code. |
| Unit 6 | Evolution | Understand theories of evolution, evidences, and human evolution. |
| Unit 7 | Human Health and Disease | Learn about pathogens, immunity, common diseases, and prevention methods. |
| Unit 8 | Strategies for Enhancement in Food Production | Study animal husbandry, plant breeding, and biotechnology applications in agriculture. |
| Unit 9 | Microbes in Human Welfare | Understand industrial, medical, and environmental applications of microbes. |
| Unit 10 | Biotechnology – Principles and Processes | Learn tools and techniques of genetic engineering and biotechnology. |
| Unit 11 | Biotechnology and its Applications | Understand applications of biotechnology in medicine, agriculture, and industry. |
| Unit 12 | Organisms and Populations | Study population ecology, interactions, and environmental adaptations. |
| Unit 13 | Ecosystem | Understand energy flow, nutrient cycles, and ecosystem productivity. |
| Unit 14 | Biodiversity and Conservation | Learn about biodiversity patterns, conservation strategies, and sustainability. |
| Unit 15 | Environmental Issues | Understand pollution, climate change, and environmental protection measures. |
| Unit 16 | Practical Biology and Project Work | Apply biological concepts through experiments, investigations, and field-based projects. |
Note: Practical experiments and project work are compulsory and assessed internally as per CISCE guidelines.
🔍 Frequently Asked Questions (FAQs)
Q1. Is ISC Class 12 Biology difficult?
Biology is content-rich, but with clear understanding and regular revision, it is highly scoring.
Q2. How important are diagrams in ISC Biology?
Very important. Neat, well-labelled diagrams carry significant weight in theory and practical exams.
Q3. Does ISC Biology include practical exams?
Yes, 30 marks are allotted for practical work, projects, and viva voce.
Q4. Is ISC Biology useful for NEET preparation?
Yes, the syllabus strongly overlaps with NEET and other medical entrance exams.
Q5. Are case-based and application questions asked in ISC Biology?
Yes, application-oriented and analytical questions are an important part of the examination.
🎯
The ISC Class 12 Biology syllabus 2025–26, designed by CISCE, provides a comprehensive and scientifically structured approach to understanding life sciences. With a balanced emphasis on theory, practical skills, diagrams, and real-world applications, this syllabus prepares students for ISC board success, competitive examinations, and advanced studies in medicine, biotechnology, and biological research.
🔑 Related Keyphrases
- ISC Class 12 Biology syllabus
- CISCE Biology curriculum 2025
- ISC Biology exam pattern Class 12
- Class 12 ISC Biology practical syllabus
- ISC Biology board exam preparation
