NCERT Books for Class 12 Biology 2025-26: Download Free PDF

Edited By Irshad Anwar | Updated on Apr 07, 2025 06:29 PM IST

NCERT Books for Class 12 Biology 2025-26: The National Council of Educational Research and Training (NCERT) releases the Class 12 Biology book based on the National Curriculum Framework (NCF). It is used extensively by the Central Board of Secondary Education (CBSE) as well as most state education boards in India. The book contains all the important chapters covered under the CBSE class 12 Syllabus, providing students with standardised and well-organised material.

Browse: NEET papers with solutions | Most scoring concepts for NEET

This Story also Contains

Download NCERT Class 12 Biology Book PDF here
Download Free NCERT Books for Class 12 Biology pdf
NCERT Class 12 Biology Book Chapters and Study Tips
Best NCERT Biology Class 12 Refrence Books
NCERT Solutions for Class 12 Biology: Chapter wise

NCERT Books for Class 12 Biology 2025-26: Download Free PDF

Biology is a theoretical science and hence considered simpler than physics and chemistry by many. To obtain good marks, though, students need to study thoroughly. The NCERT Class 12 Biology textbook is important for establishing a strong foundation because it presents concepts in a simplified and clear way. Several questions in CBSE board examinations and competitive exams such as NEET directly follow from this textbook, which makes it useful for exam preparations.

For the session 2025-26, students should check the updated edition of NCERT Class 12 Biology for remaining in contact with any updates regarding the revised syllabus. Education platforms also make chapter-wise material and more study aids available for facilitating productive learning.

Download NCERT Class 12 Biology Book PDF here

Students can also refer to the NCERT exemplar class 12 biology book pdf for better preparation. Read the article to know how to download NCERT books for Class 12 Biology online for free, syllabus, and marking scheme.

NCERT Class 12 Biology Book PDF

NCERT Book for Class 12 Biology 2025-26

This book of NCERT Class 12 biology is prescribed in most of the CBSE board schools, and hence, it gives relevant information about the respective subject. Chapter-wise links to the NCERT Biology book are tabulated below:

Chapter no.	English Medium	Hindi Medium
Chapter 1	Sexual Reproduction in Flowering Plants	पुष्पी पादपों में लैंगिक प्रजनन
Chapter 2	Human Reproduction	मानव जनन
Chapter 3	Reproductive Health	जन स्वास्थ्य
Chapter 4	Principles of Inheritance And Variation	वंशागति तथा विविधता के सिद्धांत
Chapter 5	Molecular Basis of Inheritance	वंशागति के आणविक आधार
Chapter 6	Evolution	विकास
Chapter 7	Human Health and Disease	मानव स्वास्थ्य तथा रोग
Chapter 8	Microbes in Human Welfare	मानव कल्याण में सूक्ष्मजीव
Chapter 9	Biotechnology Principles and Processes	जैव प्रौद्योगिकी- सिद्धांत व प्रक्रम
Chapter 10	Biotechnology and its Applications	जैव प्रौद्योगिकी एवं उसके उपयोग
Chapter 11	Organisms And Population	जीव और समष्टियाँ
Chapter 12	Ecosystem	पारितंत्र
Chapter 13	Biodiversity and Conservation	जैव-विविधता एवं संरक्षण

Download Free NCERT Books for Class 12 Biology pdf

Check the given steps to download NCERT Biology books for class 12th online :

Click on the respective chapter link or visit the official website ncert.nic.in/textbook
Select the respective class and NCERT bio class 12 subject.
NCERT textbook class 12 Biology file will open on your screen.
Now, click on the arrow given above to download the PDF file of the NCERT Class 12 Biology book free of cost.

Also, check the NEET syllabus here.

NCERT 12th Class Biology Books Online: Steps to Download for Free

NCERT has started the provision to buy the 12th NCERT Biology book online for the comfort of students. To buy the same, follow these steps :

Visit the official website of NCERT, https://ncertbooks.ncert.gov.in/login to buy the Class 12 Biology Books online.
Register online by providing the basic info. before placing the order.
Now, click on the link "order textbooks online" and add the NCERT Books for Class 12 Biology to the cart.
Click on the option “proceed to payment” to pay the amount using a credit card, debit card, or net banking through online mode.

NEET Highest Scoring Chapters & Topics

Most Scoring concepts For NEET (Based On Previous Year Analysis)

Download EBook

Also read -

Human Ecology And Family Sciences Part - I

Below mentioned is another NCERT Book for Class 12 Biology which is not prescribed by CBSE, but some of the schools refer to this book for Class 12th. Human Ecology and Family Sciences (HEFS) is framed to broaden students’ knowledge regarding self-development about family and society. Chapter-wise links to this book are discussed below:

Chapter no.	Chapter Name
Chapter 1	Work, Livelihood And Career
Chapter 2	Clinical Nutrition And Dietetics
Chapter 3	Public Nutrition And Health
Chapter 4	Catering and Food Service Management
Chapter 5	Food Processing And Technology
Chapter 6	Food Quality And Food Safety
Chapter 7	Early Childhood Care And Education
Chapter 8	Guidance And Counselling
Chapter 9	Special Education And Support Services
Chapter 10	Management Of Support Services, Institutions And Programmes For Children, Youth And Elderly

Also, check
CBSE Class 10 Date Sheet 2025
CBSE Class 12 Date Sheet 2025

CBSE Class Date Sheet 2025

Biology Class 12 Syllabus and Marking Scheme:

We have discussed in detail the Class 12th Biology exam structure, syllabus, and marking scheme which will help students understand the pattern of the exam and help them prepare well.

Unit	Titles	Marks
VI	Reproduction	16
VII	Genetics and Evolution	20
VIII	Biology and Human Welfare	12
IX	Biotechnology and its Applications	12
X	Ecology and Environment	10
	Total	70

NCERT Books for Class 12 Subject Wise

NCERT Book for Class 12 Physics	NCERT Book for Class 12 Maths
NCERT Books for Class 12 Chemistry	NCERT Books for Class 12 English
NCERT Book for Class 12 Hindi

NCERT Class 12 Biology Book Chapters and Study Tips

The NCERT Class 12 Biology textbook is divided into five major units, each dealing with various topics of biological sciences. Below is a brief description of these units, their chapters, and their importance in the CBSE Class 12 Biology syllabus for the 2025-26 session:

Unit VI: Reproduction (16 marks)

Use diagrammatic representations to learn about processes such as gametogenesis, fertilization, and embryonic development. Diagrams can increase understanding and recall of these subjects.

Unit VII: Genetics and Evolution (20 marks)

Mix theoretical study with diagrams, particularly for concepts such as DNA replication, transcription, and evolutionary relationships. Making brief notes can facilitate rapid revisions.

Unit VIII: Biology and Human Welfare (12 marks)

Mark important points to note important information regarding diseases, farming methods, and the function of microbes. The unit is not too long, making it possible to prepare within a short time.

Unit IX: Biotechnology and Its Applications (12 marks)

Focus on understanding the concepts and procedures of biotechnology. Personalised notes may be useful in understanding applications and ethical aspects.

Unit X: Ecology and Environment (10 marks)

Use flowcharts to trace ecological relationships, energy flow, and environmental problems. This helps in visualizing and remembering intricate relationships.

Knowledge of the weightage of every unit can help in planning study effectively. For the latest syllabus and detailed data, visit the official CBSE curriculum or reliable educational websites.

Also, check -

Best NCERT Biology Class 12 Refrence Books

Here is a list of the most recommended books for Class 12 Biology that help in CBSE board exam preparation and competitive exams like NEET.

NCERT Class 12 Biology Textbook (Latest Edition)
Trueman’s Elementary Biology for Class 12
Pradeep’s A Textbook of Biology
S. Chand’s Biology for Class XII
Dinesh New Millennium Biology Class 12
MTG Objective NCERT at Your Fingertips Biology

NCERT Solutions for Class 12 Biology: Chapter wise

Below mentioned are the chapter-wise solutions:

NCERT Solutions for Class 12 Biology Chapter 1 Sexual Reproduction in Flowering Plants

NCERT Solutions for Class 12 Biology Chapter 2 Human Reproduction

NCERT Solutions for Class 12 Biology Chapter 3 Reproductive Health

NCERT Solutions for Class 12 Biology Chapter 4 Principles of Inheritance and Variation

NCERT Solutions for Class 12 Biology Chapter 5 Molecular basis of inheritance

NCERT Solutions for Class 12 Biology Chapter 6 Evolution

NCERT Solutions for Class 12 Biology Chapter 7 Human health and disease

NCERT Solutions for Class 12 Biology Chapter 8 Microbes in Human Welfare

NCERT Solutions for Class 12 Biology Chapter 9 Biotechnology: Principles and Processes

NCERT Solutions for Class 12 Biology Chapter 10 Biotechnology and its Applications

NCERT Solutions for Class 12 Biology Chapter 11 Organisms and Populations

NCERT Solutions for Class 12 Biology Chapter 12 Ecosystem

NCERT Solutions for Class 12 Biology Chapter 13 Biodiversity and Conservation

Also Read

NCERT Syllabus 2025-26 for Class 6-12 - Download All Subjects PDF Free

NCERT Book Class 12 Physics 2025-26 FREE PDF Download

NCERT Book Class 12 English 2025-26 Free PDF Download

NCERT Books for Class 12 Hindi 2025-26; Download Chapter Wise PDF here

NCERT Book Class 12 Maths 2025-26 PDF Free Download

NCERT Books for Class 12 Biology 2025-26: Download Free PDF

NCERT Books for Class 12 - Download All Subjects PDFs Here

NCERT Class 12 Physics Chapter 3 Notes Current Electricity - Download PDF

Quadratic Equations Class 10th Notes - Free NCERT Class 10 Maths Chapter 4 Notes - Download PDF

Vector Algebra Class 12th Notes - Free NCERT Class 12 Maths Chapter 10 Notes - Download PDF

Differential Equations Class 12th Notes - Free NCERT Class 12 Maths Chapter 9 Notes - Download PDF

Application of Integrals 12th Notes - Free NCERT Class 12 Maths Chapter 8 Notes - Download PDF

Inverse Trigonometric Functions Class 12th Notes - Free NCERT Class 12 Maths Chapter 2 Notes - Download PDF

NCERT Solutions for Class 12 Maths Chapter 11 Three Dimensional Geometry

NCERT Solutions for Miscellaneous Exercise Chapter 7 Class 12 - Integrals

NCERT Solutions for Exercise 4.1 Class 11 Maths Chapter 4 - Principle of Mathematical Induction

NCERT Exemplar Class 12 Physics Solutions Chapter 8 Electromagnetic Waves

Articles

NIOS 12th Result 2025 April Exams, Check NIOS Class 12 Result Here

Mar 20, 2025

NIOS Class 12 Date Sheet 2025 Out (April Session), Check Theory and Practical Exam Time Table

Apr 02, 2025

Maharashtra State Board 11th Chemistry Books - Download PDF Free Online

Apr 10, 2025

Assam HS Toppers List 2025: Check Rank List, Name, Marks, School Details

Apr 10, 2025

Assam HS Result 2025 Release Soon: Check AHSEC 2nd Year Result @resultsassam.nic.in

Apr 10, 2025

Upcoming School Exams

Telangana Residential Junior Colleges Common Entrance Test

Application Date:24 March,2025 - 23 April,2025

Exam Pattern

Admit Card

Result

Chattisgarh State Open School 12th Examination

Admit Card Date:25 March,2025 - 21 April,2025

Admit Card

Result

Chattisgarh State Open School 10th Examination

Admit Card Date:25 March,2025 - 17 April,2025

Admit Card

Result

Punjab Board of Secondary Education 12th Examination

Exam Date:02 April,2025 - 17 April,2025

Exam Pattern

Result

Mock Test

National Institute of Open Schooling 10th examination

Admit Card Date:02 April,2025 - 19 May,2025

Application Process

Exam Pattern

Mock Test

View All School Exams

Popular Questions

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 3.8×10⁷J 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