

In the Class 7 NCERT Science book “Science”, the chapter “Respiration in Organisms” helps you understand how living organisms release energy from food. You learn the difference between breathing and respiration and discover how oxygen plays an important role in producing energy.
As you explore this chapter, you study the human respiratory system and understand how breathing takes place. You also learn about aerobic and anaerobic respiration and how different animals and plants carry out respiration in various ways.
This chapter encourages you to observe how your body works and understand the importance of respiration in maintaining life. Through diagrams and examples, you develop scientific understanding of how energy is produced and used by living organisms.