CBSE 12 Biology 2025 Paper Review: The CBSE Class 12 Biology Exam 2025 was conducted by the Central Board of Secondary Education (CBSE) on March 25 from 10:30 AM to 1:30 PM. After the conclusion of the exam, all the students aiming for high scores are now looking for expert analysis of the CBSE 12 Biology paper to determine its difficulty level and question distribution. In this article, we provide the CBSE Class 12 Biology Exam Analysis 2025, covering the section-wise difficulty level, student reactions, expert reviews, and answer key.
CBSE 12th Biology Exam Analysis 2025
As per the initial feedback from students and experts, the overall difficulty level of the paper was moderate and largely similar to last year’s board paper. Sections A and B had direct NCERT-based questions along with some application-based questions, while Section E had a few questions that required a deep conceptual understanding of core biological concepts.
- Most questions were directly from the NCERT textbook.
- Students found assertion-reasoning questions a bit challenging.
- A few questions required critical thinking and real-life application of biological concepts.
- case-based questions tested students' ability to apply concepts to real-life scenarios.
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CBSE Class 12 Biology Exam Analysis 2025: Section-wise Difficulty Level
Below, students can find the section-wise CBSE Class 12 Biology Exam Analysis 2025. It will help them understand the difficulty level of each section of the paper.
| Section | Question Type | Difficulty Level | Other Details |
|---|---|---|---|
| A | Multiple Choice Questions & Assertion and Reason Questions (1 mark) | Easy to moderate | Mostly direct NCERT-based questions along with some application-based questions. Assertion & reason questions were a bit tricky. |
| B | Very Short Answer (2 marks) | Easy to moderate | Conceptual and knowledge-based questions were asked in this section. |
| C | Short Answer (3 marks) | Moderate | Some students found this section time-consuming. Some questions required detailed explanations. |
| D | Case Study-Based Questions (4 marks) | Moderate | Case study questions required critical thinking and real-life application of biological concepts. |
| E | Long Answer (5 marks) | Moderate to difficult | Application-based questions that were slightly trickier than those in previous years required a deep understanding of core biological concepts. |
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 structured into different sections based on difficulty level and types of questions. The exam is divided into five sections and contains 38 questions. All questions are compulsory, with no overall choice. However, internal choices are available within specific sections. The details CBSE Class 12 Biology Board Exam Pattern is given below:
| Section | Number of Questions | Marks/Question | Total Marks |
|---|---|---|---|
| Section A (Q.1 - Q.16) | 16 | 1 | 16 |
| Section B (Q.17 - Q.21) | 5 | 2 | 10 |
| Section C (Q.22 - Q.28) | 7 | 3 | 21 |
| Section D (Q.29 - Q.30) | 2 | 4 | 8 |
| Section E (Q.31 - Q.33) | 3 | 5 | 15 |
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
CBSE Board Class 12 Biology Answer Key 2025
Students can download the CBSE Board Class 12 Biology Answer Key 2025 from the links below to cross-check their answers and calculate their expected marks.