NCERT Class 7 Science Chapter 7: Complete Resource for Nutrition in Plants















FAQs on NCERT Solutions for CBSE Class 7 Science Chapter 1 - Nutrition in Plants
1. How does the fungus get its nutrition?
Fungus is a saprotroph. Its mode of nutrition is called the saprotrophic mode of nutrition. It takes its food from dead and decaying organic matter. The digestive juices of fungus convert the dead materials into a soluble form that gets absorbed.
2. Explain the process of how nutrients are replenished in the soil.
The plants absorb mineral nutrients from the soil. The fertilizers and manures containing various nutrients like nitrogen, potassium, and phosphorus need to be added from time to time to enrich the soil. Nitrogen gas is available in large amounts but plants cannot use it directly from the air. The bacterium Rhizobium lives in the roots of the leguminous plants. Rhizobium bacteria convert the non-usable form of nitrogen. In this way, the nutrients are replenished in the soil by using fertilizers and manures, and by sowing leguminous plants.
3. Explain the mechanism of eating insects by a pitcher plant.
The leaves of the pitcher plants are tailored into a pitcher-like structure. The tip of the leaves forms a lid that can open and close the mouth of the pitcher-like structure of the leaves. There is hair inside the pitcher, which is directed downwards. When an insect lands in the pitcher, it gets entangled in the hair. The pitcher secretes some digestive juices that help the plant digest the insect. Such insects eating plants are insectivorous plants. These plants do not get all the necessary nutrients from the soil. So, they are called partial heterotrophs.
4. Summarize briefly Chapter 1 of Class 7th Science NCERT Textbook?
In Class 7 Chapter 1 Nutrition in Plants, students are introduced to topics related to plants and how they get nutrition for themselves. The concepts covered in these topics include the photosynthesis process, chlorophyll and stomata. The chapter also teaches other modes of nutrition in insectivorous plants.
Students also learn how nutrients are replenished in the soil and how atmospheric nitrogen is fixed in the soil through a bacterium called Rhizobium.
5. Why should we grow crops inside greenhouses?
Factors like diseases, rodents, wind, and adverse climatic conditions cannot affect the crops grown in greenhouses. Therefore, growing crops in greenhouses is beneficial for the farmers in the long run.
6. How can I download the Solutions of Chapter 1 of Class 7th Science NCERT Textbook?
The solutions are easily available on the Vedantu site.
Click on NCERT Solutions of Class 7 Science and choose Chapter 1.
The webpage with Vedantu’s solutions for Chapter 1 of Class 7th Science NCERT Textbook will open.
To download this, click on the Download PDF button and you can view the solutions offline.
For other solutions and concept-related modules on other topics or subjects, visit the Vedantu and go through the related modules. The solutions are free of cost and also available on the Vedantu Mobile app.
8. What do you understand by photosynthesis according to Chapter 1 of Class 7th Science NCERT Textbook?
During photosynthesis, the light energy is converted into chemical energy by green plants and other organisms. Chloroplasts are tiny particles found inside plant cells that perform photosynthesis. Plants absorb carbon dioxide from the air and water from the earth via their roots. The Sun gives out light energy. The leaves release the oxygen that has been generated into the air. Since it is an important topic, do understand it properly along with all its components such as chloroplasts and so on.