NCERT Solutions for Class 7 Science Chapter 10 - Respiration in Organisms


NCERT Solutions for Class 7 Science Chapter 10 - Respiration in Organisms: You will study that respiration is essential for the survival of living organisms. It releases energy from the food. The oxygen we inhale is used to breakdown glucose into carbon dioxide and water. Energy is released in the process. The breakdown of glucose occurs in the cells of an organism (cellular respiration). If the food is broken down with the use of oxygen, it is called aerobic respiration. If the breakdown occurs without the use of oxygen, the respiration is called anaerobic respiration. During heavy exercise when the supply of oxygen to our muscle cells is insufficient, food breakdown is by anaerobic respiration. Breathing is a part of the process of respiration during which an organism takes in the oxygen-rich air and gives out air rich in carbon dioxide. The respiratory organs for the exchange of gases vary in different organisms.

Here are the important topics of NCERT Solutions for Class 7 Science Chapter 10 - Respiration in Organisms mentioned below:

10.1 Why Do We Respire?

10.2 Breathing

10.3 How Do We Breathe?

10.4 What Do We Breathe Out?

10.5 Breathing in Other Animals

10.6 Breathing Under Water

10.7 Do Plants Also Respire?

In this chapter, you will also get to know that during inhalation, our lungs expand and then come back to the original state as the air moves out during exhalation. n Increased physical activity enhances the rate of breathing. n In animals like cow, buffalo, dog and cat the respiratory organs and the process of breathing is similar to those in humans. n In earthworm, the exchange of gases occurs through the moist skin. In fishes, it takes place through gills and in insects through the tracheae. n In a plant the roots take in air present in the soil. Leaves have tiny pores called stomata through which they exchange gases. The breakdown of glucose in the plant cells is similar to that in other living beings.

After going through this chapter, you must be able to get the NCERT Solution of these questions which are mentioned below, as these questions are from the Science book of NCERT.

Q1. Why does an athlete breathe faster and deeper than usual after finishing the race?

Q2. List the similarities and differences between aerobic and anaerobic respiration.

Q3. Why do we often sneeze when we inhale a lot of dust-laden air?

If you have any problem in answering these questions or you are not getting the correct answers then don't worry, NCERT Solutions for Class 7 Science Chapter 10 - Respiration in Organisms is there for you to help. Solutions for NCERT Class 7 will give you answers to all the questions which are mentioned in the NCERT book.

First of all, try to answer all the questions by yourself. Then, if you need any help, NCERT Solutions for Class 7 Science Chapter 10 - Respiration in Organisms will suggest you the best answers which are written by our experts.

NCERT Solutions for Class 7 Science Chapter 10 Respiration in Organisms - Solutions


NCERT Solutions for Class 7 Science – Chapter-wise

Chapter No.

Chapters Name

Chapter 1

Nutrition in Plants

Chapter 2

Nutrition in Animals

Chapter 3

Fibre to Fabric

Chapter 4


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


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


Chapter 16

Water: A Precious Resource

Chapter 17

Forests: Our Lifeline

Chapter 18

Wastewater Story


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