Class 11 Biology Chapter 15 – Plant Growth and Development is an important chapter of the NCERT Biology Class 11 syllabus (2025-26). It explains the phases of plant growth, types of growth, factors affecting growth, plant hormones, and photoperiodism. To simplify your learning, we provide handwritten notes PDF which are neat, colorful, and exam-focused.
📖 About Chapter 15: Plant Growth and Development
This chapter deals with the growth patterns in plants and the role of internal and external factors in development. It also highlights the significance of plant hormones like auxins, gibberellins, cytokinins, ethylene, and abscisic acid. These notes are highly useful for Class 11 board exams as well as NEET aspirants.
🌟 Key Topics Covered in Notes
- Phases of Growth – Lag, Log, and Stationary Phase
- Growth Curve and Growth Rate
- Measurement of Growth
- Conditions for Growth – Water, Oxygen, Nutrients, Temperature
- Plant Growth Regulators (PGRs) – Auxins, Gibberellins, Cytokinins, Ethylene, Abscisic Acid
- Photoperiodism and Vernalization
- Seed Dormancy and Germination
- Senescence and Abscission in Plants
✨ Features of Handwritten Notes
- Prepared according to the latest NCERT Class 11 Biology 2025-26 syllabus.
- Neat and colorful handwritten format with diagrams.
- Point-wise explanation for quick understanding.
- Useful for revision, exams, and competitive tests like NEET.
📥 Download PDF – Class 11 Biology Chapter 15 Notes
⬇️ Download Chapter 15 Plant Growth and Development Notes PDF
🎯 Why Use These Notes?
- Based on NCERT syllabus 2025-26.
- Includes important diagrams and flowcharts for better retention.
- Explains plant hormones and growth concepts in simple language.
- Beneficial for Class 11 exams, NEET, and other entrance tests.
🔑 Conclusion
The Class 11 Biology Chapter 15 – Plant Growth and Development Handwritten Notes PDF (2025-26) cover all important concepts with clarity. With diagrams and easy explanations, these notes make revision simple and effective. Download the free PDF now and strengthen your Biology preparation.
