Karnataka 2nd PUC Biology Syllabus 2024-25 - KSEAB 12th Class Biology Syllabus Download PDF

namrata das

Updated On: April 18, 2024 01:38 pm IST

Karnataka 2nd PUC Biology Syllabus 2024-25 will be published by Karnataka Education Board on its official website @pue.karnataka.gov.in. Check out the detailed chapter-wise Karnataka 2nd PUC Biology syllabus along with the evaluation scheme here.
Karnataka 2nd PUC Biology Syllabus 2024-25
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Karnataka 2nd PUC Biology Syllabus 2024-25: The Department of Pre-University Education, Karnataka will release the Karnataka 2nd PUC Biology syllabus for the academic year 2024-25 on its official website at pue.karnataka.gov.in. Any modification in the Karnataka 2nd PUC Biology syllabus 2025 will be updated here. In the previous AY 2023-24, the Karnataka 2nd PUC syllabus 2024-25 was reduced for Physics, Chemistry, Mathematics, Economics, Business Studies and Accountancy along with Biology. The Karnataka 2nd PUC Biology syllabus 2024-25 comprises 16 chapters in total. The chapters that were deleted from the Karnataka 2nd PUC Biology syllabus were Chapters 1, 9, 13, 14, and 16. Students must also check out the latest Karnataka 2nd PUC exam pattern 2025 of Biology and other subjects as well.

The Karnataka 2nd PUC Biology exam 2024 will be conducted for a maximum duration of 3 hours. The total marks allotted for the Karnataka Board 2nd PUC Biology exam will be 100 marks, out of which the theory exam will be for 70 marks and 30 marks will be given for the practical exam. Moreover, the Karnataka 2nd PUC Biology question paper will be designed based on 40% Remembering, 30% Understanding, 15-20% Application, and 10-15% Hots. students can expect a total of 36 questions in the Karnataka Board 2nd PUC Biology exam, including MCQs, short answer, and long answer type questions. The Karnataka board is likely to conduct the 2nd PUC exam 2024 from the first week of March 2025. Students must complete the Karnataka 2nd PUC Biology Syllabus 2025 and practice Karnataka 2nd PUC Model Papers 2025. Go through the entire article to stay updated with the latest Karnataka 2nd PUC Biology Syllabus 2024-25.

Karnataka 2nd PUC Biology Reduced Syllabus 2024-25 PDF

Students can download the updated Biology syllabus for KSEEB class 12 below.

Download Reduced Karnataka 2nd PUC Biology Syllabus 2024-25 PDF

Karnataka 2nd PUC Biology Syllabus 2024-25: Course Structure

At least 30 marks in each of the subjects and 35% aggregate mark out of the total marks will be required for all the board exam appearing students to pass the Karnataka 2nd PUC exam 2024. The course structure of the Karnataka Board 2nd PUC Biology syllabus 2024-25 has been tabulated below:

S.No.

Chapters 

1.

Reproduction in Organisms

2.

Sexual Reproduction in Flowering Plants

3.

Human Reproduction

4.

Reproduction and Strategies

5.

Principles of Inheritance and Variation

6.

Molecular Basis of Inheritance

7.

Evolution

8.

Human Health and Disease

9.

Strategies for Enhancement in Food Production

10.

Microbes in Human Welfare

11.

Biotechnology: Principles and Processes

12.

Biotechnology and its Applications

13.

Organisms and Population

14.

Ecosystem

15.

Biodiversity and Conservation

16.

Environmental Issues

Karnataka 2nd PUC Biology Syllabus 2024-25: Chapter-wise

The chapter wise Karnataka 2nd PUC Biology syllabus 2024-25 has been provided below:

  1. Sexual reproduction in flowering plants

Flower structure; development of male and female gametophytes; pollination – types, agencies and examples; outbreeding devices; pollen-pistil interaction; double fertilization; post fertilization events – development of endosperm and embryo, development of seed and formation of fruit; special modes – apomixis, parthenocarpy, polyembryony; Significance of seed dispersal and fruit formation.

  1. Human reproduction

Male and female reproductive systems; microscopic anatomy of testis and ovary; gametogenesis – spermatogenesis and oogenesis; menstrual cycle; fertilisation, embryo development upto blastocyst formation, implantation; pregnancy and placenta formation (elementary idea); parturition (elementary idea); lactation (elementaryidea).

  1. Principles of inheritance and variation

Heredity and variation: Mendelian inheritance; deviations from Mendelism – incomplete dominance, co-dominance, multiple alleles and inheritance of blood groups, pleiotropy; elementary idea of polygenic inheritance; chromosomal theory of inheritance; chromosomes and genes; sex determination – in humans, fruit fly, birds, honey bee and grasshopper; linkage and crossing over; mutation; sex linked
inheritance: Mendelian disorders in humans; chromosomal disorders in humans.

  1. Molecular basis of inheritance

Search for genetic material and DNA as genetic material; structure of DNA and RNA; DNA packaging; DNA replication; central dogma; transcription, genetic code, translation; gene expression and regulation
– lac operon; human genome project; DNA fingerprinting.

  1. Evolution

Origin of life; biological evolution and evidences for biological evolution (palaeontology, comparative anatomy, embryology and molecular evidences); Darwin’s contribution, modern synthetic theory of evolution; mechanism of evolution – variation (mutation and recombination) and natural selection with
examples, types of natural selection; gene flow and genetic drift; Hardy – Weinberg’s principle; adaptive radiation; human evolution.

  1. Human health and diseases

Pathogens; parasites causing human diseases (common cold, dengue, chikungunya, typhoid, pneumonia, amoebiasis, malaria, filariasis, ascariasis, ring worm) and their control; Basic concepts of immunology – vaccines; cancer, HIV and AIDS; Adolescence – drug and alcohol abuse.

  1. Microbes in human welfare

In household food processing, industrial production, sewage treatment, energy generation and microbes as biocontrol agents and biofertilisers. Antibiotics.

  1. Biotechnology – Principles and processes

Genetic Engineering (recombinant DNA technology).

  1. Biotechnology and its applications

Applications of biotechnology in health and agriculture: human insulin and vaccine production, stem cell technology, gene therapy; genetically modified organisms – Bt crops; transgenic animals; biosafety issues, biopiracy and biopatents.

  1. Biodiversity and its conservation

Concept of biodiversity; patterns of biodiversity; importance of biodiversity; loss of biodiversity; biodiversity conservation; hotspots, endangered organisms, extinction, Red Data Book, biosphere reserves, national parks, sanctuaries and Ramsar sites.

Karnataka 2nd PUC Biology Syllabus 2024-25: Deleted Topics

Students can refer to the deleted topics or chapters of the reduced Karnataka 2nd PUC Biology syllabus 2024-25:

Chapters 

Page Number

Deleted topics 

Chapter 1:

Reproduction in

Organisms

3–18

Full Chapter

Chapter 9: Strategies for Enhancement in Food Production

165–176 

178

Full Chapter

Chapter 13: Organisms and Populations

220 

221–222 

223–225 

225–226

13.1 Organism and Its Environment 

13.1.1 Major Abiotic Factors

13.1.2 Responses to Abiotic Factors

13.1.3 Adaptations

Ques. 1, 2, 3, 9, 10, 11, 12

Chapter 14: Ecosystem

250–252 

253–254 

254–255 

255

14.6 Ecological Succession

14.6.1 Succession of Plants

14.7 Nutrient Cycling

14.7.1 Ecosystem – Carbon Cycle

14.7.2 Ecosystem – Phosphorus Cycle

14.8 Ecosystem Services

Chapter 16: Environmental Issues

270–286

Full Chapter

How to Download Karnataka 2nd PUC Biology Syllabus 2024-25

To download the Karnataka 2nd PUC Biology syllabus 2024-25 from the official website of the Karnataka board follow the below mentioned instructions:

  • Step 1: Students will need to go to the official website of the Karnataka board - pue.karnataka.gov.in/
  • Step 2: On the homepage find and click on ‘Students corner’ on the navigation bar.
  • Step 3: Now, click on the ‘Reduced Syllabus’ link.
  • Step 4: A new window will open on the screen displaying the subject-wise I PUC and II PUC syllabus links.
  • Step 5: Click on the “II PUC Reduced syllabus (NCERT ADOPTED SUBJECTS)”
  • Step 6: A Karnataka 2nd PUC reduced syllabus 2024-25 PDF will open on the screen you have to download and save it for future reference.

Karnataka 2nd PUC Biology Exam Pattern 2024-25

The Karnataka board will release the chapter wise blueprint of Karnataka 2nd PUC Biology on the official website kseab.karnataka.gov.in. Students should be aware of the 2nd PUC new exam pattern 2025 of Biology. Students must obtain at least 33% in both theory and practical examinations separately. The chapter-wise exam pattern of Karnataka 2nd PUC Biology exam 2025 is tabulated below:

Unit NumberUnit NamesChapter NamesMarks Allotted
VIReproductionSexual Reproduction in Flowering Plants11 marks
Human Reproduction11 marks
Reproductive Health6 marks
VIIGenetics and EvolutionPrinciples of Inheritance14 marks
Molecular basis of inheritance14 marks
Evolution7 marks
VIIIBiology and Human WelfareHuman Health and Disease13 marks
Microbes in Human Welfare8 marks
IXBiotechnologyBiotechnology: Principles and Processes8 marks
Biotechnology and Applications6 marks
XEcologyOrganism and Population7 marks
Ecosystem5 marks
Biodiversity and Conservation5 marks
Total115 marks
The maximum weightage carrying chapters are Molecular Basis of Inheritance, Principle of Inheritance, Human, Health and Disease Sexual Reproduction in Plants, and Human Reproduction.

Karnataka 2nd PUC Biology Question Paper Pattern 2024-25

The Karnataka 2nd PUC Biology Question Paper comprises various types of questions that include objective, short answer type, and long answer type questions. The question paper will be prepared as per Remember, understand, apply, and HOTS. The Biology exam will be conducted for 3 hours and 15 minutes, where the 15 minutes will be given for reading the question paper. There will be a total of 36 questions in the Karnataka 2nd PUC Biology paper 2024 divided into four parts, A, B, C, and D. Part D again consists of two 2 sections. All questions will be compulsory. Check out the Question Paper Pattern of Biology exam to understand the section-wise marks allotment.

PartsTypes of QuestionsMainNumber of Questions GivenNumber of Questions to be AnsweredUnits to be Covered
AVSA- 1 mark1010All Units (5 Units)
BSA1- 2 marks85
CSA2- 3 marks85
DLA- 5 marksSection - I
Section - II
5
5
4
3

Level of Difficulty in Karnataka 2nd PUC Biology Question Paper
LevelWeightageMarks
Easy40%28
Average 40%28
Difficult20%14

Karnataka 2nd PUC Biology Preparation Tips 2024-25

From this year onwards, the state board has decided not to conduct supplementary examinations for class 12 students. Instead, there will be ‘three annual examinations’ which are, Exam 1, Exam 2, and Exam 3. Students who will be appearing for the Karnataka 2nd PUC exam 2025, can follow the preparation tips given below:

  • Start your exam preparation by knowing the Karnataka 2nd PUC Biology syllabus 2025 and exam pattern.
  • Know the highest weightage carrying topics and chapters in the Karnataka 2nd PUC Biology syllabus 2025.
  • Create an effective study schedule giving equal time to each topic of the subject. Maintain the schedule till the exam.
  • Make a separate notebook for Biology and jot down your notes. Study from your handwritten notes as you will remember much better what you have prepared.
  • Refer to the recommended Karnataka Board 2nd PUC Biology books. Use proper reference books if required.
  • Solve the Karnataka 2nd PUC Biology model papers and previous years' question papers to know the types and difficulty level of the questions.
  • While writing in the examination hall, write short and crisp answers. Draw diagrams and label them wherever necessary in the answers.

The Karnataka Board will release the Class 12 time table 2024 in December 2024 on its official website. Students must stay tuned this page for more information.

FAQs

How can I access the Karnataka 2nd PUC biology syllabus 2024-25?

You can access the Karnataka 2nd PUC biology syllabus 2024-25 from the official website of the Karnataka Board. You can also check and download the Karnataka 2nd PUC biology syllabus 2024-25 pdf from this page.

Has the Karnataka 2nd PUC biology syllabus 2024-25 been reduced?

Yes, the Karnataka 2nd PUC biology syllabus for the academic year 2024-25 has been reduced. Go through the detailed syllabus provided above on this page.

How many chapters are there in the Karnataka 2nd PUC biology syllabus 2024-25?

There are 16 chapters in total in the Karnataka 2nd PUC biology syllabus 2024-25 out of which 6 chapters have been deleted. 

What are the maximum marks allotted for Karnataka 2nd PUC Biology exam 2025?

The maximum mark allotted for the Karnataka 2nd Biology exam 2025 is 100. Out of these, 70 marks will be given for the theory exam and the remaining 30 marks will be for the practical exam.

Is the Karnataka 2nd PUC Biology syllabus 2024-25 released?

The Karnataka 2nd PUC Biology syllabus 2024-25 has not yet been released. The Karnataka board will release the 2nd PUC Biology syllabus for the academic year 2024-25 soon.

From where can I find the Karnataka 2nd PUC Biology Syllabus 2024-25?

You can access the Karnataka 2nd PUC Biology Syllabus 2024-25 on the official website of the Karnataka board at pue.karnataka.gov.in. You can also check and download the syllabus from here this page.

What are the maximum weightage chapters in the Karnataka 2nd PUC Biology syllabus 2025?

The maximum weightage carrying chapters in Karnataka 2nd PUC Biology syllabus 2025 are Molecular Basis of Inheritance, Principle of Inheritance, Human, Health and Disease Sexual Reproduction in Plants, and Human Reproduction.

What is the total number of questions in the Karnataka 2nd PUC Biology theory paper?

The Karnataka 2nd PUC Biology paper 2024 consists of a total of 36 questions. The paper will be divided into four parts, A, B, C, and D.

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