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Class 12 Biology Notes Chapter-wise

FREE PDF Class 12 Biology Chapter-wise Notes


CBSE Class 12th Biology Notes

Biology is one of the most exciting and productive subjects and is even more full of amazing facts and exclusive discoveries. Good grades in this subject can help students get into good medical and other institutions.  Students need effective study materials and study guides such as Vidyakul's CBSE Notes for Class 12 Biology. 

Having biology notebooks close at hand is the single most important step in getting a good grade on your final exam. Taking notes helps students quickly and thoroughly review all important topics. It also helps students complete their program in a very short amount of time. Biology includes theory-based and diagram-based questions, so students must prepare notes for each chapter.

We have compiled the notes for the important chapters of CBSE Biology 12 so that students can quickly review all the important chapter topics. Instead of stressing at the last minute, students can easily get good grades by referring to notes and studying. Read on to access Vidyakul's CBSE Class 12 Biology Notes.

CBSE Class 12 Biology: Important Topics

NCERT Biology Notebooks for Year 12 are designed in an easy-to-understand format to help students solve their most challenging problems. These notes are also a great way to learn about the test layout, grade distribution, and possible questions the test might ask. Students who studied science in Year 12 should carefully follow the NCERT Biology Notes for Year 12.

Biology consists of definitions, diagrams, and more. It consists of various chapters that require students to grasp the concepts well. So, the NCERT Notes on Class 12 Biology aims to simplify all this. In addition to the theory, it contains detailed information about practical tests that can help students with their exams.

Before going into detail about CBSE Class 12 Biology Notes, let's look at the number of chapters in CBSE Class 12 Biology.



Chapter 1

Reproduction in Organisms

Chapter 2

Sexual Reproduction in Flowering Plants

Chapter 3

Human Reproduction

Chapter 4

Reproductive Health

Chapter 5

Principles of Inheritance and Variation

Chapter 6

Molecular Basis of Inheritance

Chapter 7

Evolution Class 12

Chapter 8

Human Health and Disease

Chapter 9

Strategies for Enhancement in Food Production

Chapter 10

Microbes in Human Welfare

Chapter 11

Biotechnology: Principles and Processes

Chapter 12

Biotechnology and its Applications

Chapter 13

Organisms and Populations

Chapter 14

Ecosystem Class

Chapter 15

Biodiversity and Conservation

Chapter 16 

Environmental Issues Class

CBSE Class 12 Biology: Question Paper Pattern 

Students should focus on the following points while preparing for the CBSE Class 12 Biology exam.

  • It will help students know what topics to focus on based on the marking scheme. This will also help in planning for the syllabus mapping and covering the syllabus accordingly.

  • CBSE Class 12 marking scheme will help students to decide which section they should attempt first during the exam.

  • The marking scheme for Biology for Class 12 helps to know the number of questions according to the sections and the weightage of the marks.

  • Using the marking scheme, students can plan their preparation for CBSE Class 12 for Biology in a way that helps them manage their time effectively.

Check for the marking scheme of CBSE Class 12 Biology according to the question type:

Section Name

Answer Type

Question Details

Total Marks

Section A

Very Short Answer

5 Questions of 1 Mark Each


Section B

Short Answer I

7 Questions of 2 Marks each


Section C

Short Answer II

12 Questions of 3 Marks each


Section D

Long Answer

3 Questions of 5 Marks each


CBSE Class 12 Biology: Preparation Tips

With good preparation strategies, students can score high on CBSE 12 Biology because it is mostly a theory subject. However, this requires a well-planned study schedule and sound advice to prepare for CBSE Biology Year 12 in 2023. The Year 12 CBSE Biology Thesis has a practice exam and theory section.

Students can complete 2023 CBSE Year 12 grades with teacher guidance and CBSE 2023 Biology Year 12 Preparation Tips. Follow these top 8 tips to help you prepare for CBSE Year 12 in Biology 2023 to get good grades in your theory work. 

Here are some tips for preparing for the 12th-grade biology exam.

Tips 1- Get Familiar with the Syllabus

The first and most important step is to familiarize yourself with the CBSE syllabus for Year 12. This will help you segment topics according to grade weight and difficulty. This strategy also helps optimize the curriculum. 

Tips 2- Check the Exam Pattern

This step will help to prioritize topics, the CBSE class 12 Biology paper pattern includes information like the weightage of topics and the type of questions asked. Students can focus on important chapters that carry more marks.

Tips 3- Choose books to study


The NCERT Grade 12 Biology Book is one of the key books that students should study first. They can use a reference book but complete the NCERT book first. Reference books consolidate basic concepts and help solve complex problems.


Tips 4- Make a study plan

This is one of the most important tips to prepare for your CBSE 12 Biology Class 2023 as preparing a good study plan is also very important. Make the right study plan and stick to it. The curriculum instills discipline by organizing throughout the day. These simple steps can save you time. Make a study plan that includes time for chores and hobbies. Include breaks in your schedule.




Tips 5- Understand and Strengthen basics

The next important tip to prepare for the Year 12 CBSE in Biology is to lay the groundwork. It is very important to thoroughly study the basics before moving on to more complex concepts and topics. Pay more attention to the basics. Often students may encounter problems in more complex topics, but understanding the basics will help them solve problems easily.

Starting with NCERT Books for CBSE Year 12 in Biology 2023 will be the best option to move on to other reference books. Having a solid foundation and understanding will help you not only in final exams but also in various entrance exams.


Tips 6- Make Short notes

It is imperative to make notes for quick revising and remembering complex concepts quickly. Notes are short versions of a wide topic as CBSE 12th Biology paper is more theoretical. It will be much more potent to study from notes rather than from someone else’s.

It is also helpful to make flashcards for terminology, chemical equations, and formulas as they are technical and students usually forget them. Making notes will save time immensely as it will be easier to look every now and then to revise things quickly.

Tips 7- Solve and Practice from Sample Papers


It is always better that students go for CBSE class 12 preparation tips for Biology 2023 to schedule their practice sessions from sample papers. This gives an insight into the topics asked frequently in exams, weightage, time management, the standard of questions, exam patterns, and much more. 



Tips 8- Take Ample of Breaks

Biology is a theoretical subject and can be boring as it involves theory, practice, formulas, equations, and terminology. Students should take ample short breaks between studies to stay focused and fresh. These tips to prepare for the CBSE Class 12 Biology 2023 exam should be part of your schedule. Studying continuously for long periods of time can be frustrating. Don't forget to get some leisure time, exercise, and eat healthy food.

CBSE Class 12 Biology: Frequently Asked Questions

Q.1: Where can I get all the solutions for Biology Class 12 NCERT exercise questions?

Ans: At Vidyakul, we have provided notes to all the questions for Class 12 Biology. The notes provided in this article are prepared by the top academic experts at Vidyakul as per the NCERT Biology book for Class 12.

Q.2: Where can I get CBSE NCERT Biology Class 12 exercise answers?

Ans: Students can download Biology NCERT Class 12 exercise questions and answers from here.

Q.3: How many chapters are there in NCERT Class 12 Biology?

Ans: There are 16 chapters in NCERT Class 12 Biology.

Q.4: Is studying from NCERT sufficient for Biology in the NEET Exam?

Ans: Students who rely on NCERT notes for their NEET preparation can score at least 75%+ in their NEET exams.

Q.5: How many chapters are there in NCERT Biology Class 12 notes?

Ans: There are a total of 16 chapters available in NCERT notes for Biology Class 12 for free.

CBSE Class 12 Biology: All Chapters

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Chapter-wise Biology Notes for CBSE Class 12


Class 12 Biology is one of the tough subjects that a student faces for his board exams. With vast course content, students find it difficult to manage it. Thus, they need to put continuous efforts and rigorous practice are required by the students to score maximum marks in the board examinations. These CBSE Class 12 Biology Chapter-wise Notes are prepared by our panel of highly experienced teachers after analyzing the past 10 years of examination papers and material so no important concept is left behind. This utmost precision in preparing these notes for students ultimately leads to maximum marks in the board examination. 

Vidyakul understands the difficulties faced by the students in Class 12 while facing Biology, thus, we bring them a solution to lower down the pressure and increase their self-confidence. Free Download of CBSE Class 12 Biology Chapter-wise Notes pdf would help students in effective preparation and revision for the examinations.

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