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Dipanwita Pramanik Content Writer
Content Writer | Updated On - Sep 6, 2025
NCERT Biology Class 11 comprises 19 chapters, which are organised into 5 units. The Class 11 Biology syllabus encompasses topics such as diversity in the living world, structural organisation in plants and animals, cell anatomy and functions, and the relationship between plants and human physiology.
- The price of the NCERT Biology Class 11 book varies from Rs 160 to Rs 185, depending on the platform fees.
- There are no major changes in the NCERT Class 11 Biology Book after 2022.
- 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.
NCERT Biology Class 11 Book PDF 2024-25 is available for free download in both English and Hindi.
New NCERT Biology Class 11 PDF Free Download in English medium
Key Summary
In this article, we have provided the NCERT Class XI Biology Book PDF along with PDFs of some important topics of Biology.
- Mineral Nutrition, Transport in Plants, and Digestion and Absorption have been deleted in the NCERT Class 11 Biology Book PDF after recent revisions in the syllabus.
- NCERT Books for Class 11 Biology are essential for exam preparation.
- They are designed by experts for a clear understanding of topics.
Also Read
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 NCERT Class 11 Biology Book PDF is a non-negotiable source for students preparing for the NEET (National Eligibility cum Entrance Test) examination. 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
Why Study Class 11 Biology NCERT Book?
NCERT provides an overview of all Class 11 Biology topics and concepts as per the CBSE syllabus.
- Each topic and concept is explained clearly and concisely.
- It covers important topics frequently asked in competitive exams and helps students prepare for annual and competitive exams effectively.
- Students can assess their performance and knowledge gaps by practising the exercises in Class 11 Biology NCERT.
- It enhances understanding of key topics and helps students gain a stronger foundation in Biology.
Reference Books for Class 11 Biology
Students can also refer to the following books for an in-depth knowledge and understanding of the subject.
- Modern ABCs of Biology
- All-in-One Biology
- Truman’s Biology
- New Era Biology by Dr R.K. Pillai and Dr A.K.Chaudhary
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