The Punjab Curriculum and Textbook Board (PCTB) has introduced the latest Biology Book for Class 11 (2025 Edition) under the Single National Curriculum (SNC). This new book helps students understand the basics of life sciences, body systems, cells, and ecology.
In this blog, you’ll get the free PDF download link, a full book overview, and answers to common questions about Biology Class 11.
What is Biology in Class 11?
Biology is the study of living organisms, their structure, function, growth, and interaction with the environment. In Class 11, the subject builds a foundation for future studies in medical, agricultural, and environmental fields.
What’s Inside the Book?
The Class 11 Biology Book (2025 Edition) includes:
- Introduction to Biology and Biological Problem Solving
- Cell Structure and Function
- Biological Molecules
- Enzymes and Metabolism
- Variety of Life (Classification)
- Kingdoms of Life
- Human Physiology (Nutrition, Respiration, Excretion, etc.)
- Gaseous Exchange and Homeostasis
- Plant Physiology and Transport
Each chapter includes diagrams, real-life examples, key points, and exercises to help students learn effectively.
Approved by Punjab Board (PCTB)
This book is:
- Officially published by the Punjab Curriculum & Textbook Board (PCTB)
- Included in the 11th Class syllabus 2025
- Used in all government and private colleges in Punjab
- Follows the new educational standards under SNC
Download Biology Class 11 PDF
You can download the Biology Class 11 Book (2025 New Syllabus) using the official link below:
- No login required
- Works on mobile and computer
- Free and safe download
Why Study Biology?
This subject is ideal for students who:
- Are interested in medicine, biotechnology, agriculture, or research
- Want to learn how living systems work
- Are preparing for FSc (Pre-Medical) or related entrance exams
- Enjoy studying about cells, animals, plants, and human health
Related Class 11 PDF Books
Also download other Class 11 books based on your group:
- Chemistry – Class 11 PDF
- Physics – Class 11 PDF
- Urdu – Class 11 PDF
- English – Class 11 PDF
- Islamiat – Class 11 PDF
FAQs – Frequently Asked Questions
It includes cell biology, enzymes, classification of organisms, human and plant physiology, and more.
Focus on reading each chapter, understanding diagrams, revising key terms, and solving past paper questions.
The book contains around 11 to 13 chapters, covering all basic areas of biology.
Start with “Introduction to Biology”, then move to “Cell Biology” and “Biological Molecules”.
It depends on your future goals. For medical fields, Biology is one of the most important and useful subjects.
Final Words
The Biology Book for Class 11 (2025 New Syllabus) is a complete guide for students aiming for success in science. It’s full of practical knowledge, clear illustrations, and exam-based questions.
