Welcome to NCERT Solutions for Class 7 Science Chapter 1: Nutrition in Plants. This comprehensive resource is designed with the primary goal of enhancing the learning experience for Class 7 students and making difficult concepts easier to grasp. Crafted meticulously by seasoned educators, these solutions align perfectly with the most recent syllabus laid out by CBSE for Class 7 Science.
In the first chapter of CBSE Class 7 Science, “Nutrition in Plants,” students explore the diverse and fascinating world of plant nutrition. This chapter provides students with a comprehensive understanding of how plants feed and grow, demonstrating the extraordinary adaptability of the natural world.
The chapter opens with a general introduction to nutrition, emphasizing its importance for all living organisms. It then shifts the focus to the process of photosynthesis, where students learn how plants convert water and carbon dioxide into glucose, a form of food, using sunlight and chlorophyll. The chapter further explains how this produced food is stored in the form of starch.
The learning journey continues as the chapter takes students through alternative methods of nutrition intake in plants. It describes how some plants, like insectivorous plants, acquire nutrients from insects when sunlight or traditional photosynthetic means are insufficient. Parasitic plants, which rely on host plants for nutrition, are also introduced.
The chapter then delves into the world of saprophytic plants, which depend on decomposing organic matter for their nutrition. Symbiotic relationships are also explored, particularly the relationship between Rhizobium bacteria and leguminous plants, which results in nitrogen fixation, improving soil fertility.
In conclusion, Chapter 1 “Nutrition in Plants” provides a detailed overview of the diverse ways plants acquire their nutrients. By understanding these processes, students can gain a deeper appreciation of the intricate and beautiful workings of nature. It offers a strong foundation for future study and will encourage students to approach scientific phenomena with curiosity and wonder.