ISC Class 11 Biology Syllabus 2025–26 | CISCE Curriculum
🧬 ISC Class 11 – Biology Syllabus (2025–26)
Class: XI
Subject: Biology
Board: ISC (Indian School Certificate)
Governing Body: CISCE (Council for the Indian School Certificate Examinations)
📊 ISC Biology – Question Pattern & Marking Scheme (2025–26)
Total Marks: 100
- Theory Examination: 70 marks
- Practical / Internal Assessment: 30 marks
Theory Paper (3 Hours) – 70 Marks
- Section A: Very Short Answer Questions (VSA)
- Section B: Short Answer Questions (SA)
- Section C: Long Answer / Structured Questions (LA)
- Questions test conceptual understanding, diagrams, definitions, explanations, and applications
Practical Examination & Internal Assessment – 30 Marks
- Laboratory experiments and spotting
- Practical record & project work
- Viva voce
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The ISC Class 11 Biology syllabus 2025–26, prescribed by CISCE, introduces students to the fundamental principles of life sciences through a systematic and scientific approach. Covering cell biology, plant and animal physiology, diversity of living organisms, and ecological concepts, the syllabus emphasizes observation, experimentation, and analytical thinking. ISC Biology builds a strong foundation for Class 12 studies and prepares students for competitive examinations and careers in medicine, biotechnology, environmental science, and research.
📚 ISC Class 11 Biology Syllabus 2025–26
| Unit | Chapter / Topic | Learning Outcomes |
|---|---|---|
| Unit 1 | Diversity of Living Organisms | Understand classification, taxonomy, and characteristics of different kingdoms of life. |
| Unit 2 | Structural Organisation in Animals & Plants | Study tissues, morphology, and anatomy of flowering plants and animals. |
| Unit 3 | Cell Structure & Function | Learn cell theory, cell organelles, and their roles in cellular activities. |
| Unit 4 | Biomolecules | Understand structure and functions of carbohydrates, proteins, lipids, nucleic acids, and enzymes. |
| Unit 5 | Cell Cycle & Cell Division | Study stages of cell cycle, mitosis, meiosis, and their biological significance. |
| Unit 6 | Plant Physiology – Transport | Learn mechanisms of water, mineral, and food transport in plants. |
| Unit 7 | Plant Physiology – Photosynthesis & Respiration | Understand photosynthesis, cellular respiration, and energy flow in plants. |
| Unit 8 | Plant Growth & Development | Study plant hormones, growth patterns, and developmental stages. |
| Unit 9 | Human Physiology – Digestion & Respiration | Understand digestion, absorption, breathing, and exchange of gases. |
| Unit 10 | Human Physiology – Circulation & Excretion | Study blood circulation, heart function, kidney structure, and excretory processes. |
| Unit 11 | Human Physiology – Nervous & Muscular System | Learn coordination, nervous control, muscle contraction, and movement. |
| Unit 12 | Human Physiology – Endocrine System | Understand hormonal regulation and functions of endocrine glands. |
🔑 Related Keyphrases
- ISC Class 11 Biology syllabus
- ISC Biology curriculum 2025–26
- Class 11 ISC Biology subject details
- ISC Biology exam pattern Class 11
- CISCE Class 11 Biology syllabus
❓ Frequently Asked Questions (FAQs)
Q1. Is Biology compulsory in ISC Class 11 Science stream?
Yes, Biology is compulsory for students opting for the science stream with biology.
Q2. What is the exam pattern for ISC Class 11 Biology?
The subject carries 100 marks, with 70 marks for theory and 30 marks for practical/internal assessment.
Q3. Are practical exams mandatory in ISC Biology?
Yes, practical experiments, record submission, and viva voce are compulsory.
Q4. Does ISC Biology include diagrams in exams?
Yes, labelled diagrams and biological illustrations are an important part of the assessment.
Q5. How does Class 11 Biology help in competitive exams?
It builds essential fundamentals required for Class 12 Biology, NEET, and other life science entrance exams.
📝
The ISC Class 11 Biology syllabus 2025–26 provides a comprehensive understanding of living systems through theory, diagrams, and laboratory work. By strengthening conceptual clarity, observational skills, and scientific reasoning, this syllabus prepares students for advanced studies in biology and allied fields. Mastery of Class 11 Biology is crucial for success in Class 12 board examinations and future careers in medicine, research, and life sciences.
