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NCERT Solutions for Class 7 Science Chapter 1 Nutrition in Plants
The NCERT Solutions for Class 7 Science Chapter 1, Nutrition in Plants, provide a comprehensive understanding of how plants obtain their nutrients. This chapter is an essential part of the CBSE Class 7 Science syllabus and introduces students to the concept of photosynthesis, the process by which plants prepare their food using sunlight, water, and carbon dioxide. It also covers different modes of nutrition in plants, including autotrophic and heterotrophic nutrition, and explains the role of chlorophyll, stomata, and other plant parts in the process of photosynthesis.
Infinity Learn offers detailed NCERT solutions for Class 7 Science Chapter 1, helping students grasp the fundamental concepts of plant nutrition. These NCERT solutions are prepared by experienced educators and are designed to provide step-by-step explanations for all the questions in the NCERT textbook. By studying these solutions, students can gain a clear understanding of the topic and perform well in their exams.
These NCERT solutions class 7 are provided so a student can clear his doubts and get help with a deep understanding of the concept. Also, you can refer them to make the chapter notes and revisions notes. PDF of this can also be downloaded from the website.
NCERT Solutions Class 7 Science Chapter 1 Download Free PDF
Download the Free PDF of NCERT Solutions for Class 7 Science Chapter 1 and enhance your understanding of “Nutrition in Plants.” These solutions provide detailed explanations for all questions in the chapter, making it easier for students to grasp key concepts. By downloading the PDF, you can access the solutions anytime, anywhere, and study at your own pace. Don’t miss out on this valuable resource for your Science studies. Click here to download now and take a step towards better learning.
Access NCERT Solutions for Class 7 Science Chapter 1 Nutrition in Plants Exercise Questions and Answers
Exercise Page No. 09
1. Why do organisms need to take food?
Ans.
Living organisms need to take food for :
i) getting energy and survival.
ii) growth and development of the body.
iii) the maintenance of their bodies.
2. Distinguish between a parasite and a saprotroph.
Ans.
| PARASITE | SAPROTROPH |
| i) An organism which depends on other organisms for its nourishment and growth is called parasite.> | i) An organism that take nutrients in the form of solution from dead and decaying organic matter is called saprotroph. |
| ii) Parasite gets its nourishment from a living organism known as host.> | ii) Saprotroph gets its nourishment from dead and decaying organic matter.> |
| iii) Chlorophyll may be present >
Eg : Cuscuta (Amarbel), rafflesia etc.> |
iii) Chlorophyll is absent>
Eg : Fungi and some bacteria.> |
3. How would you test the presence of starch in leaves?
Ans.
i) Take two healthy green potted plants of the same type.
ii) Keep one potted plant in a dark room for one or two days in order to remove all the starch from the leaves.
iii) Keep the other plant in sunlight.
iv) Now, take one leaf from each potted plant and put a few drops of iodine solution on them. Then note down the observation.
v) No blue black colour will be observed on the leaves of the plant kept in the dark room. This indicates the absence of starch.
vi) Blue black colour will be observed on the leaves of the plant kept in sunlight. This indicates the presence of starch.
4. Give a brief description of the process of synthesis of food in green plants.
Ans.
i) The process of synthesis of food in green plants is called photosynthesis.
ii) During photosynthesis, chlorophyll containing cells of leaves and other parts of a plant, in the presence of sunlight, use carbon dioxide and water to synthesise food materials.
Carbon dioxide + water ” Carbohydrates + Oxygen
5. Show with the help of a sketch that the plants are the ultimate source of food.
Ans.
6. Fill in the blanks :
a. Green plants are called ______________ since they synthesise their own food.
b. The food synthesised by the plants is stored as ______________.
c. In photosynthesis solar energy is captured by the pigment called ______________.
d. During photosynthesis plants take in ______________ and release ______________.
Ans.
a) autotrophs
b) starch
c) chlorophyll
d) carbon dioxide, oxygen
7. Name the following :
i) A parasitic plant with yellow, slender and tubular stem.
ii) A plant that has both autotrophic and heterotrophic mode of nutrition.
iii) The pores through which leaves exchange gases.
Ans.
i) Cuscuta
ii) Pitcher plant
iii) Stomata
8. Tick the correct answer:
a) A marble is an example of :
i) autotroph
ii) parasite
iii) saprotroph
iv) host
Ans.
ii) parasite
b) The plant which traps and feeds on insects is :
i) Cuscuta
ii) China rose
iii) pitcher plant
iv) rose
Ans.
iii) pitcher plant
Match the items given in Column I with those in Column II :
| Column-I | Column-II |
| Chlorophyll | Rhizobium |
| Nitrogen | Heterotrophs |
| Cuscuta | Pitcher plant |
| Animals | Leaf |
| Insects | Parasite |
Ans.
| Column-I | Column-II |
| Chlorophyll | Leaf |
| Nitrogen | Rhizobium |
| Cuscuta | Parasite |
| Animals | Heterotrophs |
| Insects | Pitcher plant |
10. Mark ‘T’ if the statement is true and ‘F’ if it is false.
(i) Carbon dioxide is released during photosynthesis. (T/F)
(ii) Plants which synthesise their food are called saprotrophs. (T/F)
(iii) The product of photosynthesis is not a protein. (T/F)
(iv) Solar energy is converted into chemical energy during photosynthesis. (T/F)
Ans.
(i) F
(ii) F
(iii) T
(iv) T
11. Choose the correct option from the following :
Which part of the plant takes in carbon dioxide from the air for photosynthesis?
i) root hair
ii) stomata
iii) leaf veins
iv) sepals
Ans.
ii) stomata
12. Choose the correct option from the following :
Plants take carbon dioxide from the atmosphere mainly through their:
i) roots
ii) stem
iii) flowers
iv) leaves
Ans.
iv) leaves
- Chapter 2 Nutrition in Animals
- Chapter 3 Fibre to Fabric
- Chapter 4 Heat
- Chapter 5 Acids, Bases, and Salts
- Chapter 6 Physical and Chemical Changes
- Chapter 7 Weather, Climate, and Adaptations of Animals to Climate
- Chapter 8 Winds, Storms, and Cyclones
- Chapter 9 Soil
- Chapter 10 Respiration in Organisms
- Chapter 11 Transportation in Animals and Plants
- Chapter 12 Reproduction in Plants
- Chapter 13 Motion and Time
- Chapter 14 Electric Current and Its Effects
- Chapter 15 Light
- Chapter 16 Water: A Precious Resource
- Chapter 17 Forests: Our Lifeline
- Chapter 18 Wastewater Story
Important topics covered in these NCERT Solutions Class 7 Science Chapter 1 Nutrition in Plants
- Mode of Nutrition in Plants
- Photosynthesis – food making process in Plants
- The alternative mode of nutrition in Plants
- Saprophytes
- Nutrient replenishment in the soil
Class 7 Science chapter 1 Nutrition in Plants is interesting as it introduces students to the world of plants around us. The CBSE syllabus covers several projects that will help students to enjoy this learning process. The curriculum also deal with new terminology and concepts, which help to look forward for this Chapter.
In this Chapter, students came to know about many new concepts which deals with plants and how they get nutrition for themselves, they also deal with about photosynthesis-process of preparation of food in plants, chlorophyll, stomata. Several other modes of nutrition in plants like insectivorous plants. This chapter deal with the basic of plants nutrients, how plants make their food, but studying this Chapter in depth will further help the students to understand the concepts of botany in higher standards. Therefore student must prepare to note so that they can quickly revise the notes while revising the Chapter for the exams. Students can also use these NCERT Solution for any quick references to comprehend complex topics.
Why to Choose Infinity Learn NCERT Solutions for Class 7 Science Chapter 1
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For any type of support related to the NCERT Solutions for Class 7 given here, students can approach our support team who will help clear all their doubts. Students can also check out Infinite Learn for a more efficient learning experience.
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FAQs on NCERT Solutions Class 7 Science Chapter
What is nutrition class 7 science chapter 1?
Nutrition in Class 7 Science Chapter 1 refers to the process by which plants and other organisms obtain and utilize food for energy, growth, and maintenance.
What is the first chapter of science class 7?
The first chapter of Science Class 7 is Nutrition in Plants, which covers how plants obtain nutrients through various processes, including photosynthesis.
How do plants get nutrition?
Plants get nutrition primarily through photosynthesis, where they use sunlight, carbon dioxide, and water to produce glucose and oxygen. Some plants also obtain nutrients from the soil.
What are the nutrients in plants?
Nutrients in plants include carbohydrates, proteins, fats, vitamins, minerals, and water. These are essential for the plant's growth and development.
What are green plants called?
Green plants are called autotrophs or producers because they can produce their own food through the process of photosynthesis.
Where to Download class 7 science chapter 1 solutions?
You can download Class 7 Science Chapter 1 solutions from the Infinity Learn website. These solutions provide detailed explanations for a better understanding of the chapter.
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