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CBSE Class 12 Biology Question Paper 2023 - PDF Download

Class 12

Class 12 Biology has 16 chapters covering various important topics related to human physiology, evolution, diseases, genetics, organisms, populations, and many more. To study these chapters well and to learn how to answer basic questions, download and practice solving Class 12 Biology Important Questions with Solutions.

Here we have solved last year's question papers for CBSE Class 12 Biology. Students who are appearing for the Biology Board Exams must check out this page. All the questions are prepared by the expert teachers according to the latest syllabus. All the questions given are relevant for preparing for the Class 12 Biology Class 2023 CBSE Board Exam.

The questions given in this article are based on last year's question papers. When studying for the upcoming Class 12th Biology Examination 2023, you can find these questions helpful. For students who are preparing for medical entrance exams, like NEET, AIIMS etc., biology is also an important subject. Deep knowledge and a thorough understanding of biology subjects are needed for students who aspire to master in the board exams. Therefore the last year questions for CBSE Biology Class 12 help students prepare for their examinations.

The Central Board of Secondary Education conducted the Class 12 Biology Board Exam 2023 on March 16, from 10:30 am to 1:30 pm. It is one of the major subjects for those pursuing the Science stream in senior secondary. Here, we have provided the Class 12th Biology Question paper. Along with the question paper of Biology, students can also check the expert-verified CBSE Class 12 Biology Answer Key and exam paper analysis from this article.

CBSE Class 12 Biology 2023 Question Paper Pattern

CBSE Class 12 Biology Question Paper was divided into five sections – A, B, C, D, E.

There were 33 questions in the question paper:

  • Section A had 16 questions of 1 mark for each question. 

  • Section B had 5 Very Short Answer Type Questions of 2 marks for each question.

  • Section C had 7 Short Answer Type Questions of 3 marks for each question.

  • Section D had 2 Case Based Questions of 4 marks for each question. 

  • Section E had 3 Long Answer Type Questions of 5 marks for each question.


No. of Questions 

Marks per question

Type of Questions

Section A



Multiple Choice Question

Section B



Very Short Answer Question

Section C



Short Answer Question

Section D



Cased Based Question

Section E



Long Answer Question





CBSE Class 12 Biology Marks Distribution 2023

The marks distribution in Class 12th Biology Question Paper 2023 of CBSE Board are follows





Genetics and Evolution


Biology and Human Welfare


Biotechnology and its Applications


Ecology and Environment


Benefits of the CBSE class 12 Biology Important Questions

Following are the reasons why important questions from the Biology Class 12 CBSE board will benefit the students in their board examinations:

  • With answers, all the last year questions for Class 12 Biology are available so that students learn how to solve them.

  • The questions are created by our expert team keeping the latest syllabus in mind.

  • All these last year questions will help the students prepare for Biology board exams in the best possible way.

  • These previous year questions are made by a team of expert teachers who have many years of experience.

Frequently Asked Question

Question 1:  Name the chapters given in the NCERT book of Class 12 Biology.

Answer : Following are the chapters givens in NCERT book of class 12 Biology

  • Chapter 1–Reproduction in Organisms

  • Chapter 2–Sexual Reproduction in Flowering Plants

  • Chapter 3–Human Reproduction

  • Chapter 4–Reproductive Health

  • Chapter 5–Principles of Inheritance and Variation

  • Chapter 6–Molecular Basis of Inheritance

  • Chapter 7–Evolution

  • Chapter 8–Human Health and Disease

  • Chapter 9 –Strategies for Enhancement in Food Production

  • Chapter 10–Microbes in Human Welfare

  • Chapter 11–Biotechnology: Principles and Processes

  • Chapter 12–Biotechnology and its Applications

  • Chapter 13–Organisms and Populations

  • Chapter 14–Ecosystem

  • Chapter 15–Biodiversity and Conservation

  • Chapter 16–Environmental Issues

Question 2 : What are the Benefits of Biology Class 12th Important Questions?

Answer : It takes a great deal of focus and dedicated preparation in order to perform well in the Class 12 Biology paper. In order to prepare for an effective exam, it is very important to study last year's questions for each chapter. Students must study each chapter thoroughly and practice from a set of last year questions for Class 12 Biology. It helps in successful revision during the exams and as a result, improves your performance in the exam.



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