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

iacst-2022

From chapters of chemistry, the book moves on to the chapter of biology. The chapter starts with the discussions of different types of respiration processes such as Aerobic respiration and Anaerobic respiration. Having discussed the mode of respiration in humans, it discusses the respiration processes of different animals such as cockroaches, earthworms and fishes. Students who aspire to become doctors must pay special attention to the chapter as these concepts become basic foundations for their studies. The following are the points discussed in the chapter:

  • Respiration is essential for the survival of living organisms as it releases energy from the food. The oxygen we inhale is used to break down glucose into carbon dioxide and water.
  • The breakdown of glucose that occurs in the cells of an organism is known as cellular respiration.
  • Aerobic respiration is the process where the breakdown of food takes place in the presence of oxygen.
  • When the breakdown occurs without the use of oxygen, the respiration is called anaerobic respiration.
  • The respiratory organs for the exchange of gases vary in different organisms.
  • In a plant, the roots take in air present in the soil. Leaves exchange gases through their tiny pores called stomata.

 

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Also See
Chapter 1 Nutrition in Plants Chapter 2 Nutrition in Animals Chapter 3 Fiber 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 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

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