ISC Class 12 Biology Paper 1 Question Paper 2025 (21 March): Download PDF & Solutions
The Council for the Indian School Certificate Examinations (CISCE) is conducting the ISC 12th Exams 2025 between February 13 and April 5, 2025. The ISC Biology paper 1 was scheduled for 21 March 2025 from 2 pm to 5 pm shift; the ISC board also gives 15 minutes to read the question paper. In this article, we provide a detailed analysis of the class 12th physics question paper along with a detailed solution.
This Story also Contains
- ISC 12th Biology Exam 2025: Highlights
- ISC Class 12th Biology Paper 1 2025 overview and pattern
- ISC Class 12 Question Paper 2025: Download PDF
- ISC Class 12 Biology Paper 1 Answer key 2025: Check Solution
- ISC 12th Biology Paper 1 2025: Analysis
Students can download the biology question paper by using the pdf link, also students can check any new updates regarding the ISC class 12th examination 2025 on this page. We will also provide a section-wise analysis of the 2025 biology paper so students can predict their performance and estimate their marks and difficulty level of the exam. In this article, we also provide a brief overview of the class 12th biology paper 1, marking distribution, and pattern.
ISC 12th Biology Exam 2025: Highlights
Some of the important information regarding the ISC class 12 biology exam is given below:
|
Details | Information |
|---|---|
|
Conducting Body |
CISCE (Council for the Indian School Certificate Examinations) |
|
Class |
12th (ISC Board) |
|
Subject |
Biology |
|
Exam Type |
Board Examination |
|
Exam Mode |
Offline (Pen and Paper) |
|
Total Marks |
100 Marks (70 Theory + 30 Practical) |
|
Theory Exam Duration |
3 Hours |
|
Theory Exam Marks |
70 Marks |
|
Practical/Internal Assessment |
30 Marks (Project Work, Practical File, Viva Voce) |
|
Exam Date |
March 21, 2025 |
|
Exam Timing |
2:00 PM – 5:00 PM (typically ISC standard) |
|
Medium of Exam |
English |
|
Important Units |
Reproduction, Genetics, Evolution, Biotechnology, Ecology |
ISC Class 12th Biology Paper 1 2025 overview and pattern
The Biology theory paper is worth a total of 70 marks. The exam is conducted for a 3-hour duration. The Biology paper for the ISC 12th Board Exam 2025 consists of 4 sections: Sections A, B, C, and D.
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Section A is 20 marks and consists of short-answer recall and application-based questions.
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Section B is of 14 marks and consists of application questions.
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Section C is of 21 marks based on reasoning, analysis, and diagram-based answers
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Section D is of 15 marks based on diagrams and explanations-based questions.
ISC Class 12 Question Paper 2025: Download PDF
Students who will appear in the ISC biology exam 2025 and students preparing for the next year must download the question paper PDF from here. The question papers download link will be activated just after the exam. Stay updated on this page to download the biology question paper 2025.
|
Question paper |
Download PDF |
|
ISC Class 12th Biology Question Paper 2025 |
ISC Class 12 Biology Paper 1 Answer key 2025: Check Solution
We will update the complete answer key for the ISC Class 12 Biology exam. The candidates will be able to download the ISC Class 12 Biology answer key in PDF form. Stay tuned for further updates on this page.
ISC 12th Biology Paper 1 2025: Analysis
- The exam was of moderate difficulty.
- There was a good mix of theory and numerical questions.
- Numerical problems were tricky for some students, but manageable with good preparation.
- The exam was well-structured to test both concepts and problem-solving skills.
- Assertion-reasoning type MCQs required strong conceptual understanding.
- Students who only memorized facts may have found the exam a bit difficult.
ISC Class 12th Syllabus 2026
Get the complete ISC Class 12 Syllabus 2026 with subject-wise topics. Plan your preparation smartly with the latest updated syllabus.
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Frequently Asked Questions (FAQs)
Q: What is the structure of the ISC Class 12 Biology Paper 1 exam?
A:
The theory paper is divided into four sections:
Section A: 1 question with sub-parts, for 20 marks.
Section B: 7 questions of 2 marks each, for 14 marks.
Section C: 7 questions of 3 marks each, for 21 marks.
Section D: 3 questions of 5 marks each, for 15 marks.
Q: What are the key units and their weightage in the Biology syllabus?
A:
The units and their respective weights are:
Reproduction: 16 marks
Genetics and Evolution: 15 marks
Biology and Human Welfare: 14 marks
Biotechnology and its Applications: 10 marks
Ecology and Environment: 15 marks
Q: How are the 100 marks for Biology distributed between theory and practicals?
A:
The total is 100 marks for theory 70 marks and practical is 30 marks.
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Questions related to ISC 12th
On Question asked by student community
Have a question related to ISC 12th ?
Hey Niharika,
Getting admission in IITs or NITs doesn’t depend only on your Class 12 percentage. The main criteria is your JEE performance. For IITs, you need to clear JEE Advanced after qualifying JEE Main. For NITs, admission is through JEE Main rank.
As per eligibility, you must score at
To appear in the JEE Mains exams, the students must have qualified Class 12 with Physics, Chemistry, and Mathematics as core subjects, and to appear in the JEE Advanced , the students must have attained 75% (for General/OBC) in Class 12.
As you are a student from the ICSE board
Hello Aspirant
As per the official website the result for class 12th (2nd semester) has been declared yesterday i.e. 24th july 2022.
The official website to download the ISC 12th result is www.cisce.org.
Hope your result is good.
Hi Mahira, how did you end up uploading your marksheets? I'm also in a similar situation to yours. Please reply and help me out :)
Hello,
Yes, you can get another Class 12th Passing Certificate if you have lost it. To get obtain the passing certificate visit your school/college and enquire regarding the procedure and the details required to obtain the certificate. The concerned authority in the administration office will assist you in this regard.
Applications for Admissions are open.
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