NCERT Solutions for Class 7 Science Chapter 1 Nutrition in Plants
Get here NCERT Solution for Class 7 Science Chapter 1 for Free. NCERT Solutions for Science Class 7 provided here are best answers by AglaSem School experts, who have many year of experience in this field. Class 7 NCERT Textbook Solutions cover all the excercies of each chapter. NCERT Solutions for Class 7 Science Book are given below.
Book Name: Science
Subject: Science
Chapter Number: 1
Chapter Name: Nutrition in Plants
You can also bookmark this page by clicking + Save to Library icon and refer to these NCERT Solutions anytime from your account. More Detail
Book Name: Science
Subject: Science
Chapter Number: 1
Chapter Name: Nutrition in Plants
You can also bookmark this page by clicking + Save to Library icon and refer to these NCERT Solutions anytime from your account. More Detail
Latest News
Finished viewing? Save it for later —
Download NCERT Solutions for Class 7 Science Chapter 1 Nutrition in Plants (PDF · 6 pages)Downloaded 80 times
About NCERT Solutions for Class 7 Science Chapter 1 Nutrition in Plants
NCERT Solutions for Class 7 Science Chapter 1 Nutrition in Plants is available here for free download. Published by NCERT for Class 7, this solution can be viewed online or downloaded as a PDF (6 pages). Candidates preparing for Class 7 can use NCERT Solutions for Class 7 Science Chapter 1 Nutrition in Plants to understand the exam pattern, the type of questions asked, and the overall difficulty level.
Frequently Asked Questions
How can I download NCERT Solutions for Class 7 Science Chapter 1 Nutrition in Plants?
Open this page and click the Download button to save NCERT Solutions for Class 7 Science Chapter 1 Nutrition in Plants as a PDF. It is completely free on AglaSem Docs.
Is NCERT Solutions for Class 7 Science Chapter 1 Nutrition in Plants free to download?
Yes. NCERT Solutions for Class 7 Science Chapter 1 Nutrition in Plants can be viewed online and downloaded as a PDF free of cost on AglaSem Docs.
How many pages does NCERT Solutions for Class 7 Science Chapter 1 Nutrition in Plants have?
NCERT Solutions for Class 7 Science Chapter 1 Nutrition in Plants contains 6 pages, which you can read online or download together as a single PDF.
Where can I find more Class 7 study material?
You can find more Class 7 question papers, sample papers, syllabus, and answer keys on AglaSem Docs.
NCERT Solutions for Class 7 Science Chapter 1 Nutrition in Plants – Text
Read the full text of this solution below — useful to quickly search, copy and reference the content online without downloading the PDF.
📄 View text version (6 pages)
Page 1
NCERT
SOLUTIONS
CLASS - 7TH
aglase .co
SOLUTIONS
CLASS - 7TH
aglase .co
Page 2
Book : Science Ncert Solutions | Chapter-1 Science
Class : 7th
Subject : Science
Chapter : 1
Chapter Name : Nutrition in Plants
Q1 Why do organisms take food?
Answer. All living organisms require food to survive. It gives them energy to perform various activities. All
activities such as playing, running, walking, studying, etc. require energy. The various components present in
our food such as carbohydrates, proteins, fats, vitamins, and minerals provide energy to our body. These are
also important for growth and development of the body.
Q2 Distinguish between a parasite and a saprotroph.
Q3 How would you test the presence of starch in leaves?
Answer. Experiment to test the presence of starch in leaves:
Take two healthy green potted plants of the same type. Keep one potted plant in a dark room for one or two
days in order to remove all the starch from the leaves. Keep the other plant in sunlight. Now, take one leaf
from each potted plant and put a few drops of iodine solution on them. Then note down the observation.
Plants kept in light and dark conditions
No blue black colour will be observed on the leaves of the plant kept in the dark room.This indicates the
absence of starch. Blue black colour will be observed on the leaves of the plant kept in sunlight. This indicates
the presence of starch.
Page 1 of 5 Aglasem Schools
Class : 7th
Subject : Science
Chapter : 1
Chapter Name : Nutrition in Plants
Q1 Why do organisms take food?
Answer. All living organisms require food to survive. It gives them energy to perform various activities. All
activities such as playing, running, walking, studying, etc. require energy. The various components present in
our food such as carbohydrates, proteins, fats, vitamins, and minerals provide energy to our body. These are
also important for growth and development of the body.
Q2 Distinguish between a parasite and a saprotroph.
Q3 How would you test the presence of starch in leaves?
Answer. Experiment to test the presence of starch in leaves:
Take two healthy green potted plants of the same type. Keep one potted plant in a dark room for one or two
days in order to remove all the starch from the leaves. Keep the other plant in sunlight. Now, take one leaf
from each potted plant and put a few drops of iodine solution on them. Then note down the observation.
Plants kept in light and dark conditions
No blue black colour will be observed on the leaves of the plant kept in the dark room.This indicates the
absence of starch. Blue black colour will be observed on the leaves of the plant kept in sunlight. This indicates
the presence of starch.
Page 1 of 5 Aglasem Schools
Page 3
Book : Science Ncert Solutions | Chapter-1 Science
Q4 Give a brief description of the process of synthesis of food in green plants.
Answer. Photosynthesis is de ned as the process in which the chlorophyll-containing plant cells synthesise
food in the form of carbohydrates, using carbon dioxide and water in the presence of solar energy.
Photosynthesis containing chlorophyll.containing chlorophyll.
Sources of raw materials required for photosynthesis:
(a) Water is taken in from the roots of the plant and is transported to the leaves.
(b) Carbon dioxide from the air enters the leaves through the tiny pores called stomata and diffuses to the cells
containing chlorophyll.
(c) Solar energy is used to break water into hydrogen and oxygen. This hydrogen is combined with carbon
dioxide to form food for the plants, which is ultimately used by the animals as well. Thus, photosynthesis can
be represented by the following equation.
Q5 Show with the help of a sketch that plants are the ultimate source of food.
Photosynthesis
Page 2 of 5 Aglasem Schools
Q4 Give a brief description of the process of synthesis of food in green plants.
Answer. Photosynthesis is de ned as the process in which the chlorophyll-containing plant cells synthesise
food in the form of carbohydrates, using carbon dioxide and water in the presence of solar energy.
Photosynthesis containing chlorophyll.containing chlorophyll.
Sources of raw materials required for photosynthesis:
(a) Water is taken in from the roots of the plant and is transported to the leaves.
(b) Carbon dioxide from the air enters the leaves through the tiny pores called stomata and diffuses to the cells
containing chlorophyll.
(c) Solar energy is used to break water into hydrogen and oxygen. This hydrogen is combined with carbon
dioxide to form food for the plants, which is ultimately used by the animals as well. Thus, photosynthesis can
be represented by the following equation.
Q5 Show with the help of a sketch that plants are the ultimate source of food.
Photosynthesis
Page 2 of 5 Aglasem Schools
Page 4
Book : Science Ncert Solutions | Chapter-1 Science
Q6 Fill in the blanks:
(a) Green plants are called _________________ since they synthesise their own food.
(b) The food synthesised by plants is stored as _________________.
(c) In photosynthesis solar energy is absorbed by the pigment called ___________.
(d) During photosynthesis plants take in ______________________ and release __________________ gas.
Answer. (a) Green plants are called autotrophs since they synthesise their own food.
(b) The food synthesised by the plants is stored as starch.
(c) In photosynthesis solar energy is captured by the pigment called chlorophyll.
(d) During photosynthesis plants take in carbon dioxide and release oxygen.
Q7 Name the following:
(i) A parasitic plant with yellow, slender and branched stem.
(ii) A plant that is partially autotrophic.
(iii) The pores through which leaves exchange gases.
Answer. (i) Cuscuta
(ii) Pitcher plant
(iii) Stomata
Q8 Tick the correct answer:
(a) Cuscuta is an example of:
(i) autotroph (ii) parasite (iii) saprotroph (iv) host
(b) The plant which traps and feeds on insects is:
(i) Cuscuta (ii) china rose (iv) pitcher plant (iv) rose
Answer. (a) parasite
(b)pitcher plant
Q9 Match the items given in Column I with those in Column II.
Page 3 of 5 Aglasem Schools
Q6 Fill in the blanks:
(a) Green plants are called _________________ since they synthesise their own food.
(b) The food synthesised by plants is stored as _________________.
(c) In photosynthesis solar energy is absorbed by the pigment called ___________.
(d) During photosynthesis plants take in ______________________ and release __________________ gas.
Answer. (a) Green plants are called autotrophs since they synthesise their own food.
(b) The food synthesised by the plants is stored as starch.
(c) In photosynthesis solar energy is captured by the pigment called chlorophyll.
(d) During photosynthesis plants take in carbon dioxide and release oxygen.
Q7 Name the following:
(i) A parasitic plant with yellow, slender and branched stem.
(ii) A plant that is partially autotrophic.
(iii) The pores through which leaves exchange gases.
Answer. (i) Cuscuta
(ii) Pitcher plant
(iii) Stomata
Q8 Tick the correct answer:
(a) Cuscuta is an example of:
(i) autotroph (ii) parasite (iii) saprotroph (iv) host
(b) The plant which traps and feeds on insects is:
(i) Cuscuta (ii) china rose (iv) pitcher plant (iv) rose
Answer. (a) parasite
(b)pitcher plant
Q9 Match the items given in Column I with those in Column II.
Page 3 of 5 Aglasem Schools
Page 5
Book : Science Ncert Solutions | Chapter-1 Science
Q10 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)
Answer: (i) Carbon dioxide is released during photosynthesis. (F)
(ii) Plants which synthesise their food themselves are called saprotrophs. (F)
(iii) The product of photosynthesis is not a protein. (T)
(iv) Solar energy is converted into chemical energy during photosynthesis. (T)
Q11 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
Answer. (ii) Stomata
Page : 10 , Block Name : Exercise
Q12 Choose the correct option from the following:
Plants take carbon dioxide from the atmosphere mainly through their:
(i) roots
(ii) stem
(iii) owers
(iv) leaves
Answer. (iv) leaves
Page : 10 , Block Name : Exercise
Q13 Why do farmers grow many fruits and vegetable crops inside large green houses? What are the advantages
to the farmers?
Answer. Green house provide favourable conditions for these crops..like it gives always favourable
Page 4 of 5 Aglasem Schools
Q10 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)
Answer: (i) Carbon dioxide is released during photosynthesis. (F)
(ii) Plants which synthesise their food themselves are called saprotrophs. (F)
(iii) The product of photosynthesis is not a protein. (T)
(iv) Solar energy is converted into chemical energy during photosynthesis. (T)
Q11 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
Answer. (ii) Stomata
Page : 10 , Block Name : Exercise
Q12 Choose the correct option from the following:
Plants take carbon dioxide from the atmosphere mainly through their:
(i) roots
(ii) stem
(iii) owers
(iv) leaves
Answer. (iv) leaves
Page : 10 , Block Name : Exercise
Q13 Why do farmers grow many fruits and vegetable crops inside large green houses? What are the advantages
to the farmers?
Answer. Green house provide favourable conditions for these crops..like it gives always favourable
Page 4 of 5 Aglasem Schools
Page 6
Book : Science Ncert Solutions | Chapter-1 Science
temperature. Farmers get many advantage like the crops grow well..it also protect it from high blowing
wind,and rodents.
Page : 10 , Block Name : Exercise
Page 5 of 5 Aglasem Schools
temperature. Farmers get many advantage like the crops grow well..it also protect it from high blowing
wind,and rodents.
Page : 10 , Block Name : Exercise
Page 5 of 5 Aglasem Schools
Document Details
| Board / Org | NCERT |
| Exam | Class 7 |
| Type | Solution |
| Pages | 6 |
| Updated | 30 Apr 2026 |