KCET Biology Syllabus: Subjects, Exam Pattern, Best Books

The purpose of the KCET Biology syllabus 2025 is to assess the students' understanding and familiarity with important ideas from the NCERT curriculum for Classes 11 and 12. It covers subjects like the diversity of living things, human physiology, genetics, biotechnology, and ecology, and incorporates elements from both botany and zoology. Candidates hoping to pursue undergraduate courses in agriculture, veterinary sciences, and other life science-related professions must have a thorough understanding of this syllabus. To assist students in strategically preparing for the test, this page provides a thorough analysis of the KCET Biology syllabus.

 Released by the Karnataka Examination Authority (KEA) on the official website, the syllabus plays a crucial role in helping you understand the key concepts, chapter-wise distribution, and exam focus areas.

Whether you're targeting B.Sc. (Agri), B.Pharm, D.Pharm, or other biology-related UG courses in Karnataka, here is all the information you need to know about the KCET Biology syllabus 2025, including deleted topics, chapter-wise weightage, and preparation tips.

Overview of KCET Biology Syllabus 2025

The KCET Biology course places a strong emphasis on application-based learning, conceptual clarity, and the fusion of theory and real-world knowledge. 

Particular	Detail
Exam Conducting Body	Karnataka Examinations Authority (KEA)
Mode of Exam	Offline (Pen & Paper Based)
Subjects Covered	Physics, Chemistry, Mathematics/Biology
Biology Paper Marks	60
Syllabus Source	Karnataka 1st & 2nd PUC (Pre-University) curriculum
Official Website	kea.kar.nic.in

KCET Biology Syllabus 2025 – Chapter-Wise Topics

The KCET 2025 Biology syllabus is derived directly from the 1st PUC and 2nd PUC Biology textbooks prescribed by the Department of Pre-University Education of Karnataka. Students can download the PDF of the updated syllabus from the official KEA website and are encouraged to keep a printed copy for easy reference during their preparation.

Here’s a breakdown of the KCET 2025 Biology syllabus from 1st PUC and 2nd PUC.

1st PUC Biology Topics 

Chapter Title

Biomolecules

Respiration in Plants

Plant Kingdom

Photosynthesis in Higher Plants

Locomotion and Movement

Neural Control & Coordination

Biological Classification

Cell Cycle and Cell Division

Morphology of Flowering Plants

Body Fluids and Circulation

Living World

Anatomy of Flowering Plants

Breathing and Exchange of Gases

Plant Growth and Development

Digestion and Absorption

Excretory Products and Their Elimination

 2nd PUC Biology Topics

Chapter Title

Evolution

Biodiversity & Conservation

Environmental Issues

Ecosystem

Biotechnology – Applications

Microbes in Human Welfare

Biotechnology – Principles & Processes

Human Reproduction

Reproductive Health

Reproduction in Organisms

 KCET 2025 Biology Deleted Syllabus (Updated)

In line with recent changes, certain chapters and topics from the previous syllabus have been removed for KCET 2025. Candidates should avoid spending time on these deleted topics during preparation.

Deleted Chapters and Topics 

Chapter Name	Deleted Topics
The Living World	i) Taxonomy & Systematics, ii) Tools to study taxonomy
Plant Kingdom	Angiosperm classification, features, and examples
Morphology of Flowering Plants	Morphology & modification: root, stem, leaf, fruit, seed
Anatomy of Flowering Plants	Anatomy & functions of tissues; dicot vs monocot tissue systems; secondary growth

 KCET Biology Topic-Wise Weightage 2025

Knowing the weightage of chapters helps prioritise your preparation. Here's an estimated topic-wise weightage for KCET Biology, based on previous trends and official updates:

Weightage for 1st PUC Biology Chapters

Chapter Title	Approx. Weightage (%)
Cell Cycle and Cell Division	5% – 6%
Neural Control & Coordination	4% – 5%
Digestion & Absorption	3% – 4%
Body Fluids and Circulation	2% – 3%
Locomotion & Movement	2% – 3%
Anatomy of Flowering Plants	2% – 3%
Respiration in Plants	2% – 3%
Living World	2% – 3%
Biomolecules	1% – 2%

 Weightage for 2nd PUC Biology Chapters

Chapter Title	Approx. Weightage (%)
Human Reproduction	5% – 6%
Reproduction in Organisms	4% – 5%
Biodiversity and Conservation	3% – 4%
Ecosystem	3% – 4%
Environmental Issues	3% – 4%
Microbes in Human Welfare	1% – 2%
Organisms and Populations	1% – 2%
Biotech: Principles and Processes	1% – 2%

 Who Should Refer to the KCET Biology Syllabus?

• Students aiming for B.Sc. (Agriculture, Forestry, Sericulture, Home Science, etc.)
  
• Aspirants targeting AYUSH courses like BAMS, BHMS, BNYS, BUMS 
• Candidates appearing for B.Pharm/D.Pharma
  
• Those appearing for Naturopathy and Yogic Sciences courses
• Students applying to Veterinary Sciences and Biotech programs

Preparation Tips for KCET Biology 2025 

A strong KCET Biology strategy blends theory, visual learning, and MCQ practice. Here's a complete breakdown:

1) Follow the Official Syllabus Only

Don't waste time on outdated or extra topics.

What to Do:

• Download the latest KCET 2025 Biology syllabus from the KEA website.
  
• Use a checklist to tick off completed chapters.
  
• Avoid studying removed chapters like Taxonomy or Angiosperm classification—these were excluded in recent updates.
  

Tip: Paste the syllabus on your study wall or keep it inside your notebook to stay focused.

2) Prioritise High-Weightage Topics

Some chapters appear more frequently in KCET papers.

Must-Focus Topics:

• Human Reproduction
  
• Cell Cycle and Cell Division
• Principles of Inheritance and Variation
• Ecosystem
• Molecular Basis of Inheritance
  
• Biotechnology and its Applications
  
• Photosynthesis in Higher Plants
  

What to Do:

• Begin your prep with these scoring chapters.
  
• Revise these topics multiple times before the exam.
  
• Practice chapter-wise MCQs from previous KCET papers to understand the question pattern.
  

Tip: These topics usually account for 25–30 questions, so mastering them can boost your rank significantly.

3) Make Use of Diagrams

KCET Biology often includes label-the-diagram or match-the-part type questions.

Common Diagrams:

• Human reproductive syste
  
• Nephron structure
• Plant tissues (xylem, phloem)
  
• DNA and RNA structure
  
• Mitosis & meiosis phases

What to Do:

• Redraw key diagrams from the PUC textbook.
  
• Label each part and write one-line functions beside them.
• Revise diagrams every Sunday using a quick visual test.

Tip: Use colored pens for diagrams in your notes—this helps with memory retention.

4) Solve MCQs Daily

The MCQ format is key for KCET Biology.

How to Practice:

• Start with 20–30 MCQs per topic from a reliable book or app.
• Increase to 50–100 MCQs/day as you finish more chapters.
• Use error tracking: make a notebook of wrong answers and revise them every week.

Recommended Books:

• NCERT Exemplar 
• MTG 30 Days Crash Course
  
• Karnataka CET Biology (by Pradeep or Expert)
  

Tip: Time yourself while solving MCQs to improve speed and accuracy.

5) Revise with Flashcards

Flashcards are great for memorizing terminology and cycles.

Topics to Make Flashcards For:

• Definitions (e.g., Plasmolysis, Apoptosis)
  
• Differences (e.g., Mitosis vs Meiosis)
  
• Diagrams (e.g., Neuron structure, Lymphatic system)
• Steps in cycles (e.g., Glycolysis, Nitrogen cycle)

Tools to Use:

• DIY flashcards (index cards or sticky notes)

Tip: Use flashcards during short breaks or while waiting—it’s an efficient way to study without feeling overwhelmed.

6) Use Official PUC Textbooks

KCET doesn’t test from coaching modules or foreign guides. Almost all questions are directly lifted from the Karnataka PUC Biology textbooks.

 What to Do:

• Read PUC Biology thoroughly, line by line.
  
• Underline important facts and definitions.
  
• Solve all textbook in-text and end-of-chapter questions

Example: The function of the placenta, composition of blood, and enzyme roles in digestion—these are typically straight from textbook lines.

Tip: If you're short on time, revise from your notes made from PUC books, not from bulky guides.

Create a KCET Biology Daily Routine

Here’s a sample 2-hour daily study plan:

Time Slot	Task
4:30 – 5:00 PM	Read one topic from the PUC textbook
5:00 – 5:20 PM	Draw and label 2 diagrams
5:20 – 6:00 PM	Solve 30–40 MCQs from the same topic
6:00 – 6:10 PM	Quick flashcard revision

KCET Biology is not about how much you study—it’s about how well you study what matters. Stick to the syllabus, master the PUC book, and keep revising with MCQs and flashcards. With just 1–2 focused hours daily, you can easily aim for a 50+ score in Biology.

Understanding and following the KCET Biology syllabus 2025 is the most important step for effective exam preparation. From knowing the deleted topics to focusing on high-weightage chapters, you need to approach the syllabus strategically. Regular revision, practising MCQs, and smart time management can help you secure a high score in the Biology paper.