NCERT Class 12 Biology Notes - Download Chapter wise PDF Notes

Edited By Irshad Anwar | Updated on Apr 29, 2024 05:58 PM IST

The Class 12 Biology notes are the revision notes prepared as per the Biology Class 12 NCERT chapters. NCERT Class 12th Biology Notes: Are you gearing up for the CBSE Class 12 Biology exams and in search of top-notch study material? Look no further. Our meticulously curated CBSE Class 12 Biology Notes serve as your ultimate guide to success. In this comprehensive article, we delve into the intricacies of Biology notes for Class 12, ensuring you are well-prepared for the CBSE 12th Class Biology examinations. The NCERT Class 12 biology notes are revision notes on Class 12 NCERT biology chapters. The Class 12 biology revision notes can be downloaded, and the CBSE Class 12 biology notes PDF can be used offline. CBSE notes for Class 12 Biology are helpful for CBSE board exam preparation.

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Chapter-wise Biology Notes For Class 12
Other CBSE NCERT Study Resources
Access the Best CBSE Class 12 Biology Notes
Why Our CBSE Class 12 Biology Notes?
Chapter-wise Breakdown of CBSE Class 12 Biology Notes

Chapter-wise Biology Notes For Class 12

NCERT Class 12 Biology notes are provided for 16 chapters. Along with NCERT notes, students can use NCERT solutions to exercise problems and CBSE previous year papers for board exam preparation.

Following are the links to the Biology class 12 notes PDF download for all Chapters:

Chapter 1 - Sexual Reproduction in Flowering Plants
Chapter 2 - Human Reproduction
Chapter 3 - Reproductive Health
Chapter 4 - Principles of Inheritance and Variation
Chapter 5 - Molecular Basis of Inheritance
Chapter 6 - Evolution
Chapter 7 - Human Health and Disease
Chapter 8 - Microbes in Human Welfare
Chapter 9 - Biotechnology: Principles and Processes
Chapter 10 - Biotechnology and its Applications
Chapter 11 - Organisms and Populations
Chapter 12 - Ecosystem
Chapter 13 - Biodiversity and Conservation

The following chapters have been removed from the NCERT Class 12 Biology textbook 2023-24.

Topics Removed from the NCERT Class 12 Biology Textbook 2023-24
Reproduction in Organism Class 12 Notes
Strategies for Enhancement in Food Production
Environmental Issues

Other CBSE NCERT Study Resources

Class 12 students can access the notes, solutions, and exemplars for all subjects.

Subject-wise NCERT notes

NCERT Notes Class 12 Maths

NCERT Notes Class 12 Physics

NCERT Notes Class 12 Chemistry

Subject Wise NCERT Solution

NCERT Solution Class 12 Physics	NCERT Solution Class 12 Chemistry
NCERT Solution Class 12 Mathematics	NCERT Solution Class 12 Biology

Subject Wise NCERT Exemplar

NCERT Exemplar Class 12 Physics	NCERT Exemplar Class 12 Chemistry
NCERT Exemplar Class 12 Mathematics	NCERT Exemplar Class 12 Biology

Access the Best CBSE Class 12 Biology Notes

Chapter-wise Breakdown for Targeted Learning

Dive into detailed notes for each chapter, including essential topics like "Reproduction in Organisms," "Human Reproduction," and "Biotechnology and its Applications."
Facilitate targeted learning with a breakdown that aligns with your exam syllabus.

Bullet Points for Clarity and Conciseness

Break down complex concepts into easily digestible points using bullet lists.
Enhance your understanding with clear, concise information for each key topic.

Interactive Elements for Engaging Study Sessions

Elevate your learning experience with hyperlinks to related resources.
Immerse yourself in dynamic study sessions with multimedia elements like videos and diagrams.

Mobile-Friendly Design for On-the-Go Access

Access your Biology notes effortlessly on any device with a mobile-friendly design.
Stay ahead in your studies, even when you're on the move.

Why Our CBSE Class 12 Biology Notes?

1. Comprehensive Coverage for Exam Success

Thoroughly cover each chapter, ensuring you don't miss any vital information.
Be well-prepared for your exams with a comprehensive study resource.
biology notes for class 12 pdf free download

2. Efficient Study Sessions with Organized Content

Organized content allows for efficient study sessions.
Quickly locate and review the topics you need, saving time and effort.

3. Adaptability to Different Learning Styles

Cater to diverse learning styles with interactive elements.
Whether you're a visual learner or prefer text-based content, our notes have you covered.

4. Responsive Design for Seamless Access

Study seamlessly on any device with our responsive design.
Access your Biology notes on your laptop, tablet, or smartphone with ease.

Chapter-wise Breakdown of CBSE Class 12 Biology Notes

1. Reproduction in Organisms

Understanding the basics of reproduction at the cellular and organismic levels.
Types of reproduction: asexual and sexual.
Detailed study of the human reproductive system.

2. Sexual Reproduction in Flowering Plants

Anatomy of a flower and its role in sexual reproduction.
Pollination mechanisms and agents.
Formation of seeds and fruits.

3. Human Reproduction

Detailed exploration of the male and female reproductive systems.
Menstrual cycle and its hormonal regulation.
Fertilization, embryonic development, and pregnancy.

4. Reproductive Health

Discussion on the importance of reproductive health.
Family planning methods and their significance.
Sexually transmitted infections (STIs) and their prevention.

5. Principles of Inheritance and Variation

Mendelian inheritance and its exceptions.
Chromosomal theory of inheritance.
Genetic disorders and their implications.

6. Molecular Basis of Inheritance

Structure and replication of DNA.
Genetic code and protein synthesis.
Regulation of gene expression.

7. Evolution

Theories of evolution.
Evidences supporting the theory of evolution.
Human evolution and its significance.

8. Human Health and Diseases

Types of diseases and their causative agents.
Immunology and the immune system.
Strategies for disease prevention and control.

9. Strategies for Enhancement in Food Production

Plant and animal breeding.
Microbial production of food.
Tissue culture and its applications.

10. Microbes in Human Welfare

Microbes in household products.
Industrial applications of microbes.
Microbes in sewage treatment.

11. Biotechnology: Principles and Processes

Recombinant DNA technology.
Applications of biotechnology in medicine, agriculture, and industry.
Ethical issues in biotechnology.

12. Biotechnology and its Applications

Genetic engineering.
Genetically modified organisms (GMOs).
Bioprospecting and its importance.

13. Organisms and Populations

Population growth and regulation.
Ecosystem structure and function.
Biodiversity and conservation.

14. Ecosystem

Components of an ecosystem.
Energy flow and nutrient cycling.
Ecological succession and conservation.

15. Biodiversity and Conservation

Importance of biodiversity.
Threats to biodiversity.
Conservation strategies.

Success in CBSE Class 12 Biology exams is just a click away! Embrace our top-notch CBSE Class 12 Biology Notes, optimized for search engines and designed to enhance your learning experience. With comprehensive coverage, interactive elements, and a user-friendly design, you're on your way to acing those exams. Start your journey to success today!

Frequently Asked Question (FAQs)

1. Are all the chapters of class 12 biology covered in this NCERT Class 12th Biology Notes?

NCERT Class 12 Biology chapter wise notes discuss all the 16 chapters covered in class 12 NCERT book

2. Will these class 12th Biology Notes help in the NEET exam?

Yes, class 12th NCERT concepts are also asked in the NEET exam.

3. How many chapters are there in class 12 biology NCERT?

The NCERT notes for class 12 biology chapter include a total 16 chapters. The chapters are:
Reproduction in organisms
Sexual reproduction in flowering plants
Human reproduction
Reproductive health
Principles of inheritance and variation
Molecular basis of inheritance
Evolution
Human health and disease
Strategies for enhancement in food production
Microbes in human welfare
Biotechnology: principles and processes
Biotechnology and its applications
Organisms and populations
Ecosystem
Biodiversity and conservation
environmental issues

4. How to download the chapter wise class 12 biology notes?

Click on the links of the corresponding chapter that you wish to download

5. How to download class 12 NCERT biology book?

Visit this link to download class 12 biology NCERT for free.

https://ncert.nic.in/textbook.php?lebo1=0-16

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NCERT Solutions for Miscellaneous Exercise Chapter 7 Class 12 - Integrals

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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