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NCERT Book for class 11 Biology 2025-26: Download Free PDF

NCERT Book for class 11 Biology 2025-26: Download Free PDF

Edited By Irshad Anwar | Updated on Jul 03, 2025 11:32 AM IST

The NCERT Book for Class 11 Biology is an important resource for students who want to build a strong base in biology. This book is famous for its clear explanations and step-by-step approach. It covers important topics like cell biology, plant physiology, animal physiology, genetics, and ecology. All chapters are well-organized and include diagrams and exercises given at the end of each chapter. It follows the latest CBSE syllabus and is useful for both board exams and competitive exams like NEET. The book helps students understand basic concepts easily.

NEET Scholarship Test Kit (Class 11): Narayana | Physics Wallah Aakash | ALLEN

Browse: NEET papers with solutionsMost scoring concepts for NEET

This Story also Contains
  1. New NCERT Biology Class 11 PDF free Download
  2. NCERT Book for Class 11 Biology (Unit-wise)
  3. Benefits of the NCERT Book for CBSE Class 11 Biology
  4. How to prepare using the NCERT Book for Class 11 Biology book PDF?
NCERT Book for class 11 Biology 2025-26: Download Free PDF
NCERT Book for class 11 Biology 2025-26: Download Free PDF

By referring to the Biology textbook, students improve problem-solving skills and understand science better. The NCERT book focuses on understanding concepts, not just memorisation. It also includes practical activities and real-life examples to improve understanding. Students can download the PDF to get easy access to the full syllabus and important topics. It is a helpful study guide for exam preparation. Regular use of this book also boosts confidence in students, which allows them to perform well.

New NCERT Biology Class 11 PDF free Download

Students can download the book from here for easy access:

NCERT Class 11 Biology Book PDF 2025-26

NCERT Book for Class 11 Biology (Unit-wise)

Students can check the table below to see the units and chapters involved in the biology book. This will help them plan their studies better. All the chapters are well-explained and in easy language. Students can also find NCERT Biology class 11 solutions here. Following the syllabus and solutions will improve exam preparation.

NCERT 11th Biology Textbook Chapter Names

Given below are the biology units along with the respective chapter names. The Hindi version of this book is titled "Jeev Vigyan", and all chapters are also available in Hindi language with corresponding names.

Unit no.Unit NameEnglish MediumHindi medium
1Diversity of Living Organismsजीव जगत
जीव जगत का वर्गीकरण
वनस्पति जगत
प्राणि जगत
2Structural Organisation in Plants and Animalsपुष्पी पादपों का आकारिकी
पुष्पी पादपों का शारीर
प्राणियों में संरचनात्मक संगठन
3Cell: Structure and Functionकोशिका : जीवन की इकाई
जैव अणु
कोशिका चक्र और कोशिका विभाजन
4Plant Physiologyउच्च पादपों में प्रकाश-संश्लेषण
पादप वृद्धि एवं परिवर्धन
पादप में श्वसन
5Human Physiologyश्वसन और गैसों का विनिमय
शरीर द्रव तथा परिसंचरण
उत्सर्जी उत्पाद एवं उनका निष्कासन
गमन एवं संचलन
तंत्रिकीय नियंत्राण एवं समन्वय
तंत्रिकीय नियंत्राण एवं समन्वय

Benefits of the NCERT Book for CBSE Class 11 Biology

This book offers many advantages that support smart and effective learning. It helps students stay focused and understand each topic at their own pace.

  • The NCERT Class 11 Biology Book follows the latest CBSE syllabus, so students study the right topics.

  • It explains each concept and topic in simple and easy language.

  • Covers all important topics that are often asked in board and competitive exams.

  • The Class 11 Biology book PDF is helpful for self-study and building a strong foundation.

  • All chapters include diagrams, examples, and exercises to make learning better.

Also, read -

How to prepare using the NCERT Book for Class 11 Biology book PDF?

Studying the right way helps students stay organised and confident during their exam preparation. Here are some simple tips to use the Class 11 Biology book PDF effectively:

  • First, a student must check the NCERT syllabus carefully to know what topics they need to study.

  • Make a proper study timetable and prepare NCERT Biology Class 11 notes.
  • Focus on a strong understanding of the concepts instead of just memorising them.

  • Practice previous years’ questions to know about the types of questions asked from a topic or chapter.

  • Take short breaks between study sessions to stay fresh and avoid stress.

Also read

Frequently Asked Questions (FAQs)

1. How many books of biology are in class 11??

There is only one Biology book for Class 11 published by NCERT. It covers all the chapters included in the syllabus for the academic year.

2. Is class 11 biology very hard?

Class 11 Biology can feel difficult at first because it has a lot of theory and new terms. However, with regular study and proper understanding, it becomes easier. If students stay consistent and revise regularly, they can score well.

3. Is the 2025-26 NCERT Biology book updated according to the latest syllabus?

Yes, the 2025-26 edition is updated and aligned with the revised syllabus and curriculum framework.

4. Is NCERT enough for NEET?

Yes, NCERT is enough for NEET Biology, as most questions come directly from it. For Physics and Chemistry, NCERT is important for theory, but students should also practice extra questions from other reference books.  

5. Does the NCERT Biology book include chapter summaries and exercises?

Each chapter ends with a summary and a set of questions for self-assessment and revision.

Articles

A block of mass 0.50 kg is moving with a speed of 2.00 ms-1 on a smooth surface. It strikes another mass of 1.00 kg and then they move together as a single body. The energy loss during the collision is

Option 1)

0.34\; J

Option 2)

0.16\; J

Option 3)

1.00\; J

Option 4)

0.67\; J

A person trying to lose weight by burning fat lifts a mass of 10 kg upto a height of 1 m 1000 times.  Assume that the potential energy lost each time he lowers the mass is dissipated.  How much fat will he use up considering the work done only when the weight is lifted up ?  Fat supplies 3.8×107 J of energy per kg which is converted to mechanical energy with a 20% efficiency rate.  Take g = 9.8 ms−2 :

Option 1)

2.45×10−3 kg

Option 2)

 6.45×10−3 kg

Option 3)

 9.89×10−3 kg

Option 4)

12.89×10−3 kg

 

An athlete in the olympic games covers a distance of 100 m in 10 s. His kinetic energy can be estimated to be in the range

Option 1)

2,000 \; J - 5,000\; J

Option 2)

200 \, \, J - 500 \, \, J

Option 3)

2\times 10^{5}J-3\times 10^{5}J

Option 4)

20,000 \, \, J - 50,000 \, \, J

A particle is projected at 600   to the horizontal with a kinetic energy K. The kinetic energy at the highest point

Option 1)

K/2\,

Option 2)

\; K\;

Option 3)

zero\;

Option 4)

K/4

In the reaction,

2Al_{(s)}+6HCL_{(aq)}\rightarrow 2Al^{3+}\, _{(aq)}+6Cl^{-}\, _{(aq)}+3H_{2(g)}

Option 1)

11.2\, L\, H_{2(g)}  at STP  is produced for every mole HCL_{(aq)}  consumed

Option 2)

6L\, HCl_{(aq)}  is consumed for ever 3L\, H_{2(g)}      produced

Option 3)

33.6 L\, H_{2(g)} is produced regardless of temperature and pressure for every mole Al that reacts

Option 4)

67.2\, L\, H_{2(g)} at STP is produced for every mole Al that reacts .

How many moles of magnesium phosphate, Mg_{3}(PO_{4})_{2} will contain 0.25 mole of oxygen atoms?

Option 1)

0.02

Option 2)

3.125 × 10-2

Option 3)

1.25 × 10-2

Option 4)

2.5 × 10-2

If we consider that 1/6, in place of 1/12, mass of carbon atom is taken to be the relative atomic mass unit, the mass of one mole of a substance will

Option 1)

decrease twice

Option 2)

increase two fold

Option 3)

remain unchanged

Option 4)

be a function of the molecular mass of the substance.

With increase of temperature, which of these changes?

Option 1)

Molality

Option 2)

Weight fraction of solute

Option 3)

Fraction of solute present in water

Option 4)

Mole fraction.

Number of atoms in 558.5 gram Fe (at. wt.of Fe = 55.85 g mol-1) is

Option 1)

twice that in 60 g carbon

Option 2)

6.023 × 1022

Option 3)

half that in 8 g He

Option 4)

558.5 × 6.023 × 1023

A pulley of radius 2 m is rotated about its axis by a force F = (20t - 5t2) newton (where t is measured in seconds) applied tangentially. If the moment of inertia of the pulley about its axis of rotation is 10 kg m2 , the number of rotations made by the pulley before its direction of motion if reversed, is

Option 1)

less than 3

Option 2)

more than 3 but less than 6

Option 3)

more than 6 but less than 9

Option 4)

more than 9

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