Bhaskar Das Arts and Board Exam Specialist
Arts and Board Exam Specialist | Updated On - Jan 3, 2026
The NCERT Biology Class 11 textbook is now available for students of the 2025–2026 session. We have provided the PDF format of the textbook in both English and Hindi below in this article. The NCERT Biology Class 11 textbook contains a total of 19 chapters, organised into five units. The book begins with an introduction to "The Living World," which revolves around the basics of life and the characteristics of living organisms. The last unit of the Biology Class 11 textbook is devoted to "Human Physiology."
- Every page of the NCERT book holds its own importance, as 80-85% of the questions come directly from the NCERT Biology class 11 & 12th books.
- Apart from NEET, the NCERT Biology textbook for Class 11 forms the conceptual base for students for exams like CUET, ICAR, and Class 12 board exams.
- Depending on the platform charges, the price of the NCERT Biology Textbook for Class 11 lies between INR 160 and INR 185.
- According to the revised CBSE Class 11 Biology syllabus 2022-2023, some chapters, including Mineral Nutrition, Transport in Plants, and Digestion and Absorption, have been removed from the Biology NCERT textbooks.
New NCERT Biology Class 11 PDF Free Download
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- Is Every Page of the NCERT Biology Textbook Worth Reading?
- NCERT Class 11 Biology Chapterwise PDF
- NCERT Class 11 Biology – Hindi Chapter-wise PDFs
- NCERT Class 11 Biology PDF for NEET Preparation
- Which are the Best Reference Books for Class 11 Biology?
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Is it Important to Learn the Complete NCERT Class 11 Biology Book?
The NCERT Class 11 Biology book provides a basic understanding of key concepts in plant and human physiology, scientific discoveries, and much more. According to the NCERT Biology Textbook 2025–2026 edition available on Amazon, the latest NCERT Biology book for Class 11 (English Medium) has 331 pages. Many readers found this book helpful not only for boards but also for NEET and other medical exams.
Source: NCERT Biology Textbook for Class 11 2025–2026 Edition
You can check the recent changes made in the latest edition (2025–2026) of the NCERT Biology Textbook for Class 11 in the YouTube link given below:
People Also Asked For
Ques: Is it required to buy the latest edition of the NCERT Biology Class 11 Book?
Ans: Yes. Buying the latest edition of NCERT Biology Class 11 textbook is recommended, especially after the recent updations in the syllabus. You can see following changes in the latest edition:
- Updated & relevant content: Outdated or removed topics in NCERT Biology Class 11 Book are replaced with exam-relevant explanations.
- Alignment with CBSE Guidelines: The book now follows the revised competency-based questions asked in board exams and NEET.
- Minimizing Errors: In the latest edition of Class 11 Biology book, you can see improvements in the diagrams, tables and terminology present in the previous book.
- Simplified concepts: Rationalised chapters offer simple explanations that help in revision and improving conceptual clarity.
Ques: What is the deleted syllabus of Class 11 Biology 2025-26?
Ans: For the 2025–26 academic year, NCERT continues with the rationalised Class 11 Biology syllabus, where selective high-detail or repetitive content has been removed to make chapters more concept-focused. Major deletions include:
- Biological Classification: Reduced depth on Archaea, Viruses, Viroids, and detailed classification levels.
- Plant Kingdom & Animal Kingdom: Fewer species-level examples; trimmed taxonomic characteristics to avoid rote learning.
- Biomolecules: Reduced advanced biochemical pathways, reactions, and structural details of proteins, lipids, and enzymes.
- Plant Physiology: Shortened explanation of photosynthetic pathways, respiration steps, mineral uptake theories, and transport mechanisms.
NCERT’s 2025–26 edition follows the same rationalised structure introduced during syllabus reduction, with no added chapters or reversed deletions.
Is Every Page of the NCERT Biology Textbook Worth Reading?
Every page of the NCERT Class 11 Biology book has its own significance. According to a Quora user, the page on scientists' biographies was previously overlooked by students. However, in NEET 2019, the NTA surprised everyone by asking questions from this section as well: "The Ramachandran plot is used to confirm the structure of—"
Source: Quora
Are you still in doubt: whether to read the complete NCERT Biology book or not? According to toppers and experts, NCERT is considered the Bible of NEET (National Eligibility cum Entrance Test). Missing even a single section today could cost you tomorrow's exam. PCB students preparing for NEET or other exams should keep these things in mind.
Therefore, you should read the NCERT Class 11 Biology book page by page. Now, students often wonder if it's possible to read nearly 300 pages of the NCERT Biology Class 11 book. Well, reading such a long book is obviously difficult, but it's essential if you want to score well in NEET or board exams or want to get ahead of others.
Additionally, you can practice NCERT-based Biology MCQs to test your knowledge and analyse which topics you've mastered and which ones you're still lagging.
Check this:
NCERT Class 11 Biology Chapterwise PDF
The 19 chapters of Class 11 Biology in English are provided in a downloadable PDF format along with the respective NCERT solutions.
NCERT Class 11 Biology – Hindi Chapter-wise PDFs
The 19 chapters of Class 11 Biology in Hindi are provided in a downloadable PDF format along with the respective NCERT solutions.
NCERT Class 11 Biology PDF for NEET Preparation
The syllabus of the NEET exam covers both the NCERT Class 11th and the NCERT Class 12th Biology books. Looking at the past 10 years, 75% of total biology questions in the NEET exam come from the NCERT Class 11 Biology books.
Class 11 Biology - Important Concepts
Important chapter topics and concepts related to Class 11 Biology NCERT are given below.
Chapter 1: The Living World
The Living World chapter carries 4 marks and deals with taxonomy and hierarchical classification. Some of the important topics in the Living World chapter include:
Chapter MCQ: Living World MCQs
Chapter 2: Biological Classification
The Biological Classification chapter carries 4 marks and deals with the classification of all living organisms. Some of the important topics include:
- Protista
- Fungi and Lichens
- Kingdom Monera
- Scientific Names of Plants and Animals
- Reproduction in Bacteria
Chapter MCQ: Biological Classification MCQs
Chapter 3: Plant Kingdom
The Plant Kingdom chapter carries 4 marks and explains the features and functions of the plant kingdom. Some of the important topics include:
Chapter MCQ: MCQs On the Plant Kingdom
Chapter 4: Animal Kingdom
The Animal Kingdom chapter carries 4 marks and discusses the classification and features of the animal kingdom. Some of the important topics include:
- Invertebrates and Vertebrates
- Flight Adaptations
- Close type circulatory systems
- Classification of the Animal Kingdom
- Lower Vertebrates
Chapter MCQ: Animal Kingdom MCQ
Chapter 5: Morphology of Flowering Plants
The morphology of flowering plants chapter carries 4 marks and explains the anatomy and functions of flowering plants. Some of the important topics include:
Chapter MCQ: Plant Morphology MCQs
Chapter 6: Anatomy of Flowering Plants
The Anatomy of Flowering Plants chapter carries 4 marks and explains the features of the anatomy of flowering plants. Some of the important topics include:
- Internal Anatomy of a Leaf
- Monocots and Dicot plants' anatomy
- Regions of Root
- Pistil
- Vascular Cambium
Chapter 7: Structural Organisation in Animals
Structural Organisation in Animals carries 4 marks and deals with the anatomy and features of various animal phyla. Some of the important topics include:
- Structure of the Nose
- Skin Diagram
- Earthworm Reproductive System
- Animal Tissues
- Anatomy of Ca cockroach
Chapter MCQ: Structural Organisation In Animals MCQ
Chapter 8: Cell: The Unit of Life
Cell- the unit of life chapter carries 4 marks and explains in detail the cell structure, functions, cell organelles, and types. Some of the important topics include:
Chapter MCQ: Cell Biology MCQs
Chapter 9: Biomolecules
The biomolecules chapter deals with the synthesis of various biomolecules, such as proteins, lipids, and amino acids, in cells, and their importance. Some of the important topics include:
Chapter MCQ: Biomolecules MCQs
Chapter 10: Cell Cycle and Cell Division
The cell cycle and Cell division chapter deals with the different types of cell division that take place in organisms. Some of the important topics include:
- Equational Division
- Interphase
- Chromosome and Chromatid
- Lysosomal Storage Disease
- Haploid and Diploid
Chapter MCQ: Cell Cycle And Cell Division MCQ
Chapter 11: Photosynthesis in Higher Plants
The Photosynthesis in Higher Plants chapter explains in detail how photosynthesis is different in higher plants and lower plants. Some of the important topics include:
Chapter MCQ: MCQ On Photosynthesis
Chapter 12: Respiration in Plants
Respiration in plants deals with the process of respiration and the working functions of the respiratory system in plants. Some of the important topics include:
- Aerobic Respiration
- Difference between Photosynthesis and Respiration
- Glycolysis
- Fermentation
- Energy currency of the cell
Chapter MCQ: Respiration In Plants MCQ
Chapter 13: Plant Growth and Development
The Plant Growth and Development chapter revolves around the process of growth and the growth inhibitors involved in the development of plants. Some of the important topics include:
Chapter MCQ: Plant Growth And Development MCQ
Chapter 14: Breathing and Exchange of Gases
The Breathing and Exchange of Gases chapter of Class 11 Biology NCERT PDF 2023-24 explains the process of respiration and the organs related to it in human beings. Some of the important topics include:
- Human Respiratory System
- Pharynx and Larynx
- Mechanism of breathing and its regulation in humans
- Lung Disease
- Thoracic Cavity
Chapter MCQ: Breathing And Exchange Of Gases MCQ
Chapter 15: Body Fluids and Circulation
The body fluids and circulation chapter explains the mechanism of circulation of blood into different parts of the body. Some of the important topics include:
Chapter MCQ: Body Fluids And Circulation MCQ
Chapter 16: Excretory Products and Their Elimination
The excretory products and Elimination chapter details the process of the excretory system in the human body. Some of the important topics include:
- Human excretory system
- Modes of excretion
- Nephrons
- Disorders of the Excretory System
- Egestion and Excretion
Chapter MCQ: Excretory Products And Their Elimination MCQ
Chapter 17: Locomotion and Movement
The Locomotion and Movement chapter of Class 11 Biology NCERT PDF deals with the working of the combined system of muscular and skeletal systems. Some of the important topics include:
Chapter MCQ: Locomotion And Movement MCQ
Chapter 18: Neural Control and Coordination
The Neural Control and Coordination chapter revolves around the working of the nervous system in the human body. Some of the important topics include:
Chapter MCQ: Neural Control And Coordination MCQ
Chapter 19: Chemical Coordination and Integration
The Chemical Coordination and Integration chapter explains the need and importance of various chemicals that help in the physiological functions of the human body. Some of the important topics include:
Chapter MCQ: Chemical Coordination and Integration MCQ
People Also Asked For
Ques: Which Book is Good for Biology MCQs?
Ans: For accurate and NEET-relevant MCQ practice, the following books are preferred because they directly follow the NCERT line-by-line framework and offer exam-level question quality:
- MTG NCERT at Your Fingertips Biology – Chapter-wise NCERT-based MCQs with topic-tagging; excellent for daily NCERT revision + PYQ patterns.
- Trueman’s Objective Biology – Strong theory support + high/medium-level MCQs for depth building.
- Dinesh Objective Biology – Large and detailed question bank suitable for advanced practice.
- Arihant Chapter-wise Biology MCQs – Strictly chapter-segregated PYQs for pattern recognition and last-month revision.
These books provide NCERT-aligned, exam-pattern, and concept-checking MCQs, making them ideal for NEET 2026 aspirants aiming for 340+ in Biology.
Which are the Best Reference Books for Class 11 Biology?
No reference book other than the NCERT Class 11 Biology book is approved or authorised by the CBSE for NEET or other medical exams. 80-85% of the questions in the Biology section of the NEET exam are from NCERT books. Although students can use reference books to understand the complex language of NCERT, they should not rely on NCERT solutions in place of NCERT, as NCERT does not take responsibility for any detail or line.
Here's a list of some good reference books that students can use to understand the complex language and concepts in the NCERT Class 11 Biology book. Additionally, you can take notes or diagrams or flowcharts used to illustrate biological processes such as the anatomy of flowering plants, photosynthesis, and more.
| Recommended Books | Details |
|---|---|
| Trueman’s Elementary Biology Book Vol 1 | Easy language, Chapter-wise NCERT coverage |
| MTG NCERT at your Fingertips | Perfect for NEET MCQ practice |
| Pradeep’s Biology Book for Class 11 | Detailed theory and solved examples |
| Arihant Handbook of Biology | Short notes and detailed summary tables |
Also check:
People Also Asked For
Ques: What is the hardest chapter in Class 11 Biology?
Ans: The chapters students consistently find toughest in Class 11 Biology are:
- Cell: Structure & Function – Highly detailed, lengthy theory, and many organelles to memorise.
- Biomolecules – Complex chemical structures, pathways, and reactions that require repeated revision.
- Plant Physiology (Photosynthesis & Respiration) – Concept-heavy, involves mechanisms, equations, and some numerical understanding.
Overall, these chapters demand deeper conceptual clarity and regular revision, which is why most NEET aspirants rate them as the most challenging in Class 11 Biology.
Ques: Which is the Practice Book for NCERT Biology?
Ans: The most reliable practice books aligned with NCERT are:
- NCERT at Your Fingertips (MTG) – best for topic-wise practice
- Oswald NCERT Question Bank Biology – covers in-text- + exercise questions
- Arihant NCERT Workbook Biology – solved & unsolved practice sets
Frequently Asked Questions (FAQs)
Ques: Why is it important to study the Class 11 Biology NCERT Book?
Ans: The NCERT Class 11 Biology book is the most reliable resource for building strong conceptual clarity as per the latest CBSE curriculum. It explains every chapter in a simple, structured, and exam-oriented manner, ensuring students understand core biological principles without confusion.
- The book includes chapter-end questions and exercises that help students identify learning gaps, strengthen retention, and evaluate exam readiness.
- Overall, Class 11 Biology NCERT helps students develop a solid base in Botany and Zoology, improves conceptual accuracy, and prepares them effectively for both school exams and national-level entrance tests.
Ques: How can I effectively take notes from the NCERT Class 11 Biology Book PDF?
Ans: Students can follow these steps while reading the NCERT Class 11 Biology book:
- Highlight the lines that seem most important to you.
- Make short notes of the definitions and processes explained in the chapter.
- Also, write down exceptions in bullet points, either on sticky notes or highlight them in the book.
- Once you've read a chapter, make summary notes with important points so you don't have to reread the chapter while revising.
Ques: Seeing the question level in NEET 2025, which is the best book for Biology?
Ans: For NEET 2025’s highly NCERT-focused and line-specific question pattern, the best book for Biology is still NCERT Biology Class 11 & 12. Most of the 2025 Biology questions were direct, statement-based, or slightly twisted versions of NCERT lines, so relying on NCERT gives the highest accuracy.
For practice and NEET-style MCQs, aspirants should pair the NCERT with:
- NCERT at Your Fingertips (MTG) – for chapter-wise NCERT-based MCQs
- NCERT Exemplar (Class 11 & 12) – for concept-building and tricky statements
- Previous 10–15 years NEET Biology questions – to understand pattern repetition.
This combination ensures NCERT retention + MCQ accuracy, which aligns with the actual NEET 2025 difficulty and trend.
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