Class 11 • Biology • Lahore Board
Class 11 Biology Notes (Lahore Board) – Free PDF Download
Get the best Class 11 Biology notes for Lahore Board in PDF, absolutely free. Chapter-wise 1st Year Biology notes with complete theory, solved exercises, MCQs and short & long questions for all 12 chapters – based on the Punjab (New National Curriculum 2025-26) syllabus.All Chapters – Class 11 Biology (Lahore Board)
Chapter-wise PDF notes for the complete 1st Year Biology bookChapter 1English MediumBiodiversity and ClassificationSpecies, three-domain system, five kingdoms and biodiversity conservation.Chapter 2English MediumBacteria and VirusesStructure of bacteria and viruses, their classification, uses and diseases.Chapter 3English MediumCells and Subcellular OrganellesCell structure, prokaryotic & eukaryotic cells and subcellular organelles.Chapter 4English MediumMolecular BiologyBiomolecules, DNA/RNA, protein synthesis and molecular biology basics.Chapter 5English MediumEnzymesEnzyme structure, mechanism of action, factors affecting and inhibition.Chapter 6English MediumBioenergeticsRespiration, ATP, glycolysis, Krebs cycle and oxidative phosphorylation.Chapter 7English MediumStructural and Computational BiologyProtein structure, X-ray crystallography and computational biology.Chapter 8English MediumPlant PhysiologyPhotosynthesis, transport in plants, stomata and plant growth.Chapter 9English MediumHuman Digestive SystemHuman digestion, alimentary canal, glands and digestive disorders.Chapter 10English MediumHuman Respiratory SystemRespiratory system, gas exchange, breathing and respiratory disorders.Chapter 11English MediumHuman Circulatory SystemHeart, blood, blood vessels and the human circulatory system.Chapter 12English MediumHuman Skeleton and Muscular SystemsBones, cartilage, joints, muscles and the human skeletal system.
What’s Inside These Notes?
Everything to score full marks in Class 11 BiologyChapter Theory
Clear, exam-focused theory with diagrams for every chapter.Solved Exercises
Complete solutions to all textbook exercise questions.MCQs
Chapter MCQs including UHS/entrance-test style questions.Short & Long Questions
Important short and long questions with answers.Free PDF Download
Download any chapter PDF and study offline anytime.Lahore Board Aligned
Based on the latest Punjab/Lahore Board 2025-26 syllabus. Study Tip for Biology
Start with the diagrams and definitions of each chapter, then practice the solved exercises and MCQs from past papers. Download the chapter PDFs to your phone so you can revise key topics like Enzymes, Bioenergetics and Human systems anytime before the exam.Frequently Asked Questions
Common questions about Class 11 Biology Lahore Board notesThe 1st Year Biology book has 12 chapters: Biodiversity & Classification, Bacteria & Viruses, Cells & Subcellular Organelles, Molecular Biology, Enzymes, Bioenergetics, Structural & Computational Biology, Plant Physiology, and the Human Digestive, Respiratory, Circulatory and Skeletal/Muscular systems.
Yes. These notes follow the Punjab New National Curriculum (2025-26) and are valid for Lahore Board and all other Punjab Boards (BISE).
Yes, every chapter is available as a free PDF that you can read online or download and study offline.
Yes, each chapter includes complete theory, solved textbook exercises, MCQs and short & long questions for board exam preparation.
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