NCERT Exemplar Class 7 Science Chapter 10 Solutions: Respiration in Organisms

NCERT Exemplar Solutions for Class 7 Science Chapter 10 are introduced to explain why do we all breathe? How do we breathe? NCERT Exemplar Class 7 Science for Chapter 10 is going to explain to you different topics like why do we respire, respiration, breathing, how do you breathe, breathing process in other animals, etc. with the help of 18 exemplar problems.

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Topics Covered Under NCERT Exemplar Class 7 Science Chapter 10

Why Do We Respire?

In the earlier chapters, you studied about cells and their functions. Cells also need energy for their working but from where does this energy come. 

Do you have any idea about why your parents ask you to eat regularly? This is because food has energy.

Cellular Respiration

This process refers to the breakdown of food in the cell along with the release of energy. In this chapter, you will study about aerobic as well as anaerobic. You will study about how the breakdown of food releases energy.


Under this category, you will study different activities that will help you to understand the processes of inhalation and exhalation. Inhalation refers to taking air In, which is rich in oxygen, on the other hand, exaltation refers to giving out of the air that is rich carbon dioxide. Also, you will know about breathing great.

How do we breathe?

This topic will teach you about the mechanism of breathing. You will know about your nasal cavity, lungs, chest cavity, diaphragm. You will understand the detailed working of this process in the chapter.

Breathing in Other Animals 

There are many other animals like elephants, lions, cows, goats, frogs, etc. that have lungs in their chest cavities as human beings have. This topic will help you to know the process of breathing in cockroaches and earth-worms.

Do plants also respire?

Like living organisms respire for their survival similarly plants also respire for their survival. Plants also take in oxygen and give out carbon dioxide. In plants, each and every part can independently take in oxygen from the air and give carbon dioxide out through the tiny pores called stomata.

Exercise Discussion of NCERT Exemplar Solutions for Class 7 Science Chapter 10

  • This chapter contains 18 questions that are entirely based on the different topics of the chapter. You will find multiple choice questions to long answer questions that test your understanding of the several topics of the chapter.
  • The first set of NCERT Exemplar problems has multiple choice questions in which you need to identify what is produced when you exhale or identify the type of respiration, etc. 
  • Followed by multiple-choice questions come the very short answer questions that check your skills if you can answer precisely and appropriately to what is asked in the question. This set consists of true or false statements, fill in the blanks, etc.
  • The third section has short answer questions in which you need to give proper reasoning to the given question on topics like breathing rate, respiratory organs etc. 
  • The last section is of long answer questions on topics like respiration in plants, respiratory organs in animals etc.

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