ICSE Selina Class 10 Biology Solutions Chapter-7-Chemical Coordination in Plants
Plants may appear inactive from the outside, but they continuously respond to their surroundings through chemical coordination. Students searching for ICSE Selina Class 10 Biology Solutions and ICSE Selina Class 10 Solutions often look for easy explanations of Chapter-7 Chemical Coordination in Plants because it introduces important plant hormones and growth responses. This chapter explains how plants react to light, gravity, water, and touch with the help of chemical substances known as phytohormones. Myclass24 provides detailed and exam-focused solutions that simplify these concepts for students preparing for school tests and ICSE board examinations.
Find the PDF of all exercises of ICSE Selina Class 10 Biology Solutions Chapter-7-Chemical Coordination in Plants
This chapter mainly focuses on plant hormones and the different growth movements shown by plants. Students learn about auxins, gibberellins, cytokinins, abscisic acid, and ethylene, along with their functions in plant growth and development. These hormones regulate various biological activities such as cell division, flowering, fruit ripening, and seed germination.
The chapter also explains tropic movements like phototropism, geotropism, hydrotropism, and thigmotropism. These movements help plants respond to external stimuli in a controlled manner. Since these topics involve scientific terms and biological processes, exercise solutions help students understand the chapter more clearly.
Students preparing for examinations can use textbook solutions to revise definitions, functions, differences, and diagram-based concepts quickly. The explanations are written in simple language, making the chapter easier to understand and remember.
Important Topics Covered in Chemical Coordination in Plants
One of the most important topics in this chapter is plant hormones or phytohormones. Students learn that these chemical substances control growth and coordinate different functions in plants. Auxins help in cell elongation and phototropic responses, while gibberellins promote stem growth and seed germination. Cytokinins are responsible for cell division, whereas abscisic acid acts as a growth inhibitor.
Another major topic covered in the chapter is tropic movement. Plants show directional growth responses when exposed to environmental stimuli. Phototropism refers to growth in response to light, while geotropism is related to gravity. Hydrotropism and thigmotropism are associated with water and touch respectively. These movements are commonly asked in ICSE Biology examinations. The chapter also explains nastic movements, which are non-directional responses in plants. Students understand the difference between tropic and nastic movements through examples and textbook explanations. Diagram-based questions related to plant responses are also important for examination preparation.
Special emphasis is given to understanding the role of hormones in controlling plant growth because these concepts form the foundation of plant physiology.
Why Students Prefer ICSE Selina Class 10 Biology Solutions for This Chapter
Many students find this chapter difficult because it contains several scientific terms and plant hormone functions. Well-organised solutions make the concepts easier by explaining each topic step-by-step. Students can understand the role of hormones and growth responses more effectively through simplified answers and examples.
The chapter is important for board examinations because it contains theory-based, diagram-based, and reasoning questions. Learning accurate definitions and functions helps students improve answer-writing skills. The solutions also help students revise important concepts quickly before examinations. Students who practise textbook solutions regularly can understand the differences between various plant movements and hormones more clearly. This improves conceptual understanding and helps in scoring better marks in Biology.
Preparation Tips for Chapter 7: Chemical Coordination in Plants
To prepare effectively for this chapter, students should first learn all plant hormones and their functions carefully. Making short notes for hormone functions and growth responses can help during revision. Students should also practise the differences between tropic and nastic movements because these questions are commonly asked in exams.
Diagram practice is equally important for scoring good marks in Biology. Students should revise examples of phototropism, geotropism, and hydrotropism regularly. Solving textbook exercises and previous-year questions can improve confidence and understanding of concepts. Students should focus on understanding biological processes instead of memorising answers blindly. Consistent revision and proper understanding of plant coordination mechanisms help students perform well in ICSE examinations.