NCERT Solutions for Class 7 Science Chapter 1: Nutrition in Plants

In this chapter, students have been introduced to various modes of nutrition in plants, the methods through which plants make food, i.e., photosynthesis, and how nutrients are replenished in the soil. Students by the end of this chapter will learn the process of photosynthesis, the modes of nutrition, and a brief introduction to the structure of a cell. Class 7 NCERT of Science bears new concepts in every chapter. Therefore, students are expected to have a good grasp of the basics for a seamless understanding of the subject matter.
- The various modes of nutrition are Autotrophic, Heterotrophic, and Saprotrophic nutrition.
- Plants use simple chemical substances like carbon dioxide, water, and minerals for the synthesis of food.
- Chlorophyll and sunlight are the essential requirements for photosynthesis. Plants absorb mineral nutrients from the soil. Solar energy is stored in the form of food in the leaves with the help of chlorophyll.
- Oxygen is produced during photosynthesis. Living organisms utilise oxygen released in photosynthesis for their survival.
- Fungi are called saprotrophs as they derive nutrition from dead, decaying matter.
- Plants like Cuscuta are parasites since they take food from the host plant.
- A few plants and all animals are dependent on others for their nutrition and are called heterotrophs.
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