• Written By Varsha
  • Last Modified 22-05-2023

CBSE Class 12 Biology Syllabus 2023


CBSE Class 12 Biology Syllabus: The Central Board of Secondary Education (CBSE) has released the Biology Class 12 syllabus for 2023 on its official website. It is essential for students to go through the syllabus thoroughly before starting to prepare for their exams in order to study strategically in order to score better marks.

In a subject like Biology, the paper of CBSE Class 12 comprises 100 marks divided into 70 marks for theory and 30 marks for practical. There are a total of 5 units in CBSE Class 12 Biology that students need to prepare. This article contains the detailed CBSE Class 12 Biology syllabus. Continue reading to know more.

CBSE Class 12 Syllabus for Biology

Students can read the article below and learn about the chapters and how they can prepare well for their exams. For a thorough preparation, students can also check out Embibe for CBSE Class 12 study materials including videos, practice questions, and mock tests.

Chapter No.Chapter Name
1Sexual Reproduction In Flowering Plants
2Human Reproduction
3Reproductive Health
4Principles of Inheritance and Variation
5Molecular Basis of Inheritance
7Human Health and Diseases
8Microbes in Human Welfare
9Biotechnology – Principles and Processes
10Biotechnology and its Applications
11Organisms and Populations
13Biodiversity and its Conservation

CBSE Class 12 Biology Syllabus: Marks Distribution

Students can find the CBSE Class 12 marks distribution for Biology in the table below:

Sl. No.UnitsMarks
2Genetics and Evolution20
3Biology and Human Welfare12
4Biotechnology and its Applications12
5Ecology and Environment10

How to prepare for CBSE Class 12 Biology Exam

The following preparation tips will help students have a smooth exam preparation for CBSE Class 12 Biology exam:

  • Study at least 5 hours a day: Students must try and habitually study at least 5 hours a day. Subjects like Biology are lengthy and require time and dedication. It is also important to take short breaks in between to avoid exhaustion. 
  • Prioritise your chapters (difficulty-level-wise): Prioritising the chapters difficulty-level-wise will help students prepare quickly and effectively for their exams. Candidates should try to cover the difficult topics first and then move to the ones that they find easy. In this way, they will not miss out on any important topic and can also cover the syllabus on time.
  • Make a timetable: A study timetable will help them strategise their preparation for the examination. Making an effective study timetable and then following it with discipline is always helpful. This will keep them on track and away from stress. 
  • Practice Diagrams: Students must dedicate extra time to practising diagrams as diagrams are an important part of Class 12 Biology. To score well, students must be fluent in the diagrams and labelling.
  • Read thoroughly: They must read all the chapters to understand the concepts. Only after understanding the concept will they be able to secure good marks in the examination. Students are advised to read and understand deeply before memorising the concepts.
  • Revise every day: Candidates should make a habit of revising every day. This way, they will never forget any concept. Students must study and understand each topic and concept clearly. A daily revision is the key to scoring perfect marks.

Take CBSE Class 12 Biology Test

After studying all the chapters, it is important for students to test their knowledge. To do so, Embibe provides several chapter-wise and full mock tests for students so that they understand how well they have prepared. Taking tests helps students analyze their performance and work on the topics for they are not fully prepared. Click on the links below to access CBSE Class 12 Biology mock tests

S. No.Test Your CBSE Class 12 Biology Concepts
1CBSE Class 12 Biology Paper 1
2CBSE Class 12 Biology Paper 2
3CBSE Class 12 Biology Chapter-wise Tests

FAQs on CBSE Class 12 Biology Syllabus 2023

Given below are some of the frequently asked questions on the CBSE Class 12 Biology syllabus:

Q: Where can I find the CBSE Class 12 Biology syllabus?

Ans: Students can find the CBSE Class 12 Biology syllabus on this page.

Q: How many chapters are there in CBSE Class 12 Biology?

Ans: There are 13 chapters in CBSE Class 12 Biology.

Q: How can I prepare for my CBSE Class 12 Biology exam?

Ans: Students can prepare for their CBSE Class 12 Biology exam by following the tips mentioned in the article above.

Q: Where can I find the CBSE Class 12 Biology study materials?

Ans: Students can find the CBSE Class 12 Biology study materials on Embibe.

Q: Are Embibe’s CBSE Class 12 Biology mock tests available for free?

Ans: Yes, the CBSE Class 12 Biology mock tests on Embibe are available for free.

We hope you found this article helpful. For more details and information regarding CBSE Class 12 exams, stay tuned on Embibe.

Clear your CBSE Class 12 Biology Doubts With Unlimited Questions And Answers