NCERT Books for Class 12 Biology 2024-25

NCERT Books for Class 12 Biology 2024-25 - Download Free PDF

Edited By Dinesh Goyal | Updated on Oct 22, 2024 01:47 PM IST

NCERT Books for Class 12 Biology 2024-25: National Council of Educational Research and Training (NCERT) publishes the NCERT class 12 Biology books that are planned under the National Curriculum Framework (NCF). Most of the CBSE and State Boards follow these books and syllabus. NCERT textbook for Class 12th biology includes all topics and chapters that are covered in the CBSE class 12 Syllabus for Biology. Students can download the NCERT Class 12 books here.

NCERT Books for Class 12 Biology 2024-25 - Download Free PDF

Biology is a theoretical subject and seems easier than physics and chemistry. But this 12th NCERT Biology book pdf needs to be prepared carefully as well, as it is very scoring. Hence, students are advised to read from NCERT Books for Class 12 Biology 2024-25 to study the subject and clear all the basics first. Moreover, questions in CBSE Class 12th board exams, NEET entrance exam, etc., are generally asked from the NCERT Science books Class 12.

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.

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.

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NCERT Book for Class 12 Biology 2024-25

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

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 student’s 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
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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

Students are advised to be aware of the NCERT syllabus and marking scheme of all the other Class 12th subjects to prepare well and in a definite pattern. Also, read:
Unit VI - Reproduction:

The first unit of NCERT Books for Class 12 Biology is Reproduction. This unit is further differentiated into several chapters namely - Reproduction in human beings, Reproduction in flowering plants, Human Reproduction and Reproductive health. This unit acts as a huge importance to score well in the class 12th board exams as it holds 16 marks out of 70. Students are advised to prepare this unit using a lot of diagrammatic representation. This will help them to understand the details clearly.

Unit VII - Genetics And Evolution

The Genetics and Evolution unit contains several chapters namely - Principles of Inheritance and Variation, Molecular Basis of Inheritance, and Evolution. Students should prepare well by using diagrams along with a theoretical explanation. This unit involves some concepts which will be clear if studied carefully. Students are also suggested to make short notes of various topics while preparation of the exams. This unit is important as it carries 20 marks out of 70 in class 12th biology board exams.

Unit VIII - Biology in Human Welfare

NCERT Books for Class 12 Biology take into account this unit and further distribute the same into chapters such as - Human Health and Diseases, Strategies for Enhancement in Food Production and Microbes in Human Welfare. These chapters include a lot of theoretical information. Students are advised to highlight important details to remember every important point. This unit holds 12 marks and can be prepared in less time. Thus, students are suggested to prepare this unit well to score high.

Unit IX - Biotechnology and its Applications

This unit involves theory and simple details about Biotechnology and its application. Biotechnology is further divided into two chapters such as - Biotechnology: Principles and Processes and Biotechnology and its Applications. It carries 12 marks out of 70. Students are advised referring to NCERT Biology books for class 12 to clear their concepts. It is advised to make personal notes for better preparation.

Unit X - Ecology and Environment

Ecology and Environment is the last unit, which is included in the NCERT Books for Class 12 Biology. It involves several chapters like Organism and Population, Ecosystem, Biodiversity and Conservation and Environmental Issues. This unit holds 10 marks out of 70 and should be prepared using flowcharts. Using flowcharts will help the students to remember every detail which will add to their high score.

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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