CBSE Class 12 Biology Exam Pattern 2025: The Central Board of Secondary Education (CBSE) has released the CBSE Class 12 Biology exam pattern and marking scheme for the Board Exam 2025 scheduled to be held on March 25, 2025. Knowing the CBSE Class 12 Biology exam pattern is essential for students to develop a strategic preparation plan and achieve high scores. A clear knowledge of question types, weightage, and marking scheme helps in effective time management and focused study. In this article, we provide a detailed breakdown of the exam format, including section-wise distribution and scoring criteria. This information will enable students to streamline their revision, improve accuracy, and boost confidence for the upcoming board exams.
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CBSE Class 12 Biology Previous Year Question Paper
CBSE Class 12 Biology Exam 2025: Overview
|
Conducting Body |
CBSE |
|
Mode of Exam |
Pen and Paper (Offline) |
|
Duration |
3 hours |
|
Marks |
70 |
|
Total Number of Questions |
33 |
|
Section |
5 (A, B, C, D and E) |
|
Question Type |
|
CBSE Class 12 Biology Paper Format 2025
The CBSE Class 12 Biology question paper is divided into five sections, covering different difficulty levels and question types. It consists of 33 compulsory questions, with no overall choice. However, internal choices are provided in certain sections to offer flexibility. Below is a detailed breakdown of the CBSE Class 12 Biology Board Exam pattern:
| Section | Number of Questions | Marks/Question | Total Marks | Type of Questions | Internal Choice |
|---|---|---|---|---|---|
| Section A (Q.1 - Q.16) | 16 | 1 | 16 | MCQs, A&R | No |
| Section B (Q.17 - Q.21) | 5 | 2 | 10 | VSA | 3 |
| Section C (Q.22 - Q.28) | 7 | 3 | 21 | SA | 0 |
| Section D (Q.29 - Q.30) | 2 | 4 | 8 | Case Study-based | 2 (In Subparts) |
| Section E (Q.31 - Q.33) | 3 | 5 | 15 | LA | 3 |
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CBSE Class 12 Biology Most Repeated Question
CBSE 12th Biology Marking Scheme
The CBSE Class 12 Biology Board Exam Marking Scheme ensures a fair evaluation by incorporating stepwise marking for problem-solving questions. Below is the detailed section-wise marking distribution.
- Section A- 16 MCQs and A&R of 1 mark each
- Section B- 5 VSA Questions of 2 marks each
- Section C- 7 SA Questions of 3 marks each
- Section D- 2 Case Study-based Questions of 4 marks each each
- Section E- 3 LA Questions of 5 marks
Expert Tips to Prepare for CBSE Class 12 Biology Board Exam 2025
Preparing for the CBSE Class 12 Biology Board Exam requires a strategic approach to maximise scores. Here are some expert tips to help you succeed:
- First of all, understand the syllabus and focus on high-weightage chapters.
- Allocate specific time for each chapter, giving extra attention to complex topics.
- Write down important definitions, diagrams, and key concepts for quick revision.
- Biology requires clear and accurate diagrams, so practice drawing and labelling them neatly.
- Practice previous year question papers and identify frequently asked questions.
- CBSE follows a step-marking pattern, so focus on writing solutions step by step.
- Solve past years' board papers within 3 hours to improve speed and accuracy.
- NCERT is the key resource for conceptual clarity so revise it thoroughly.