CGBSE 12th Preparation Tips for Biology
Chhattisgarh Board of Secondary Education 12th 2026 ( CGBSE 12th )
Students preparing for CGBSE 12th Biology exam must go through the preparation tips to score well. Practise previous years' question papers, make notes, learn formulas to begin with. Read more tips here...
Chhattisgarh Board of Secondary Education (CGBSE) is a state-level board of education responsible for conducting board examination in the state of Chhattisgarh. Biology is one of the optional subjects offered in the CGBSE Class 12 Science stream.
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The syllabus of CGBSE Class 12 Biology includes several scientific names for different plants and animals. To score well in the board exams, students must learn these terms thoroughly. The students must also focus on understanding the basic concepts to get a firm grip on the subject. Students need to make an elaborate study plan and get all the necessary resources. This article discusses the preparation tips for CGBSE Class 12 Biology exam in detail.
CGBSE 12th Exam Pattern for Biology
According to the CGBSE 12th exam pattern, the exam duration for CGBSE Class 12 Biology is three hours. The total marks allocated for Biology examination is 100 — 70 marks for the theory exam and 30 marks for the practical assessment. The detailed unit-wise marks distribution for CGBSE Class 12 Biology is given below:
| Unit No. |
Name |
Marks |
|---|---|---|
| Unit 1 |
Reproduction |
14 |
| Unit 2 |
Genetics and Evolution |
18 |
| Unit 3 |
Biology and Human Welfare |
14 |
| Unit 4 |
Biotechnology and its applications |
10 |
| Unit 5 |
Ecology and Environment |
14 |
Practical Assessment
The time duration for the CGBSE Class 12 Biology practical assessment is three hours. The total marks for the practical assessment is 30.
| S. No. |
Heading |
Marks Allotted |
|---|---|---|
| 1 |
One Major Experiment Part A |
5 |
| 2 |
One Minor Experiment |
4 |
| 3 |
Slide Preparation Part A |
5 |
| 4 |
Spotting Part B |
7 |
| 5 |
Practical Record + Viva (A) |
4 |
| 6 |
Project Record + Viva (B) |
5 |
|
|
Total |
30 |
Key Preparation Tips for CGBSE 12th Biology Exam
The preparation for CGBSE Class 12 Biology exam involves practising diagrams and memorising important scientific terms and definitions. Here are some key tips to plan your Class Biology preparation better.
- List down important topics
The first step of the CGBSE 12th preparation process is to note down the units or topics of the syllabus based on their weightage and exam pattern. Some of the important topics include Human Health, Organisms, Genetics, Biotechnology, Ecosystem, Environment, and Ecology. A list of such topics can help the students to start their preparation in the right direction rather than giving more time to other areas.
- Books to refer
The students preparing for board exams must refer to the books prescribed by the board to clarify their fundamentals. Apart from the board textbooks, some of the books that the students can refer to are Elementary Biology by KN Bhatia, Together with Biology by S. Chand, Biology by Campbell and Reece and Trueman’s Elementary Biology by KN Bhatia. The students can adopt a topic by topic approach to cover the syllabus from the books.
- Write down definitions and important terms
During the preparation, the students must write down all the definitions and important terms in a separate book and go through the same regularly. This will help in memorising a concept and revising the same easily, which in turn will boost the confidence level.
- Work with flashcards
The flashcards can improve knowledge and focus and make it easier to understand the information. The students can club the information such as important discoveries, concepts and dates with the flashcard format and learn the same on the go.
- Pay attention in lab sessions
Biology also includes lab sessions and practical work with one major experiment and one minor experiment. It also entails practical record, project record and viva voce. To score well in the exam, the students must understand the functioning behind an experiment, note down the observations, and then revise the same.
- Summarise the findings
The students must always summarise the findings as this would make it easy to remember the concept or practical work performed. Also, they must quickly go through the findings once before the examination.
- Revision is key, with special focus on important topics
Revision is the most important step of the preparation process. Biology is a subject which requires multiple readings to understand the concepts. Therefore, the students must set daily, weekly, and monthly goals to cover the syllabus well in advance.
- Graphical illustrations
During the examination, the students must draw diagrams wherever possible. This improves the presentation of the answer and helps the teacher to comprehend better the solution you have presented for the question. The students should draw neat diagrams coupled with to the point answers to improve the scores.
- Previous year questions
The CGBSE 12th previous year question papers provide an important way to analyse the type of questions in the examination. Therefore, the students must go through the previous year question papers to know the exam and question pattern. Practising questions of previous years can help them to structure the answer and improve speed and accuracy in the exam.
- Time management
Time is vital and its management plays a crucial role to cover and revise the syllabus well in time to stay ahead in the race. The students must plan and allot time to cover the topics every day. The students can also juggle between subjects to break the monotony. In the examination hall, time adds to the psychological pressure. Therefore, the students can quickly run through the questions once to identify the ones to attempt first.
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Student Forum
Anything you would want to ask experts?Answered 2 weeks ago
After reaching out to many students who appeared for the CGBSE 12th class exams, the level of Mathematics is moderate to high. However, students also thinks that alll the questions were doable and those who cover the syllabus can easily score marks above 80% in the paper.
M
Contributor-Level 10
Answered 2 weeks ago
Any score above 75% is better in CGBSE class 12th exams. Students who prepare the syllabus can easily obtain marks above 75% in the CG Board class 12 exams.
M
Contributor-Level 10
Answered 2 weeks ago
The board is expected to release the CG Board class 12th 2nd main result 2026 in July/August 2026. An exact CGBSE class 12th 2nd main result 2026 date will be announced by the board.
M
Contributor-Level 10
Answered 2 weeks ago
On paper both exams are not same, however, technically, both exams are same if you look at all the aspects of both the exams. Over the past few years, the board has been organising the CG Board 12th 2nd main exams instead of compartment exams. The students who failed in the final CGBSE 12th exams an
M
Contributor-Level 10
Answered 2 weeks ago
The board will release the CGBSE class 12th time table 2026 for the second main after the final result announcement. However, based on last year's exam date, the board is expected to hold the CG Board 12th 2nd main exams in July 2026.
M
Contributor-Level 10
Answered 2 weeks ago
Maths is considered the most difficult papers among the CGBSE 12th students. Many students also find Physics, Chemsitry, Accountancy, Business Studies a bit difficult. However, those who cover the syllabus can easily obtain good marks in these difficult papers.
M
Contributor-Level 10
Answered 2 weeks ago
From the last two years, the board has been organising the CG Board class 12 second main exams in place of supplementary exams. Students who fail in the class 12th main exams or who want to improve their marks can appear for the CGBSE 12th 2nd phase exams.
M
Contributor-Level 10
Answered 2 weeks ago
After analysing the previous year's CG Board 12th question paper, it can be said that the level of CGBSE 12th exams is easy to moderate. However, many students find Maths paper moderate to tough in the final exams.
M
Contributor-Level 10
Jasleen Kaur Taneja is an education editorial expert at Shiksha.com. She prepares content for school board exams. She has written 1,800+ articles with 2.8 crore reads.
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