NCERT Exemplar Class 7 Science Chapter 10 – Respiration in Organisms
The chapter Respiration in Organisms introduces students to the vital life process that releases energy from food. It explains aerobic respiration in the presence of oxygen and anaerobic respiration in the absence of oxygen. Students learn about breathing in humans, the role of the lungs, the diaphragm, and the exchange of gases. The differences between breathing and respiration are clarified to remove common misconceptions. The chapter also explains respiration in animals, including earthworms, fish, and insects, showing how organisms are adapted to their environment. The NCERT Exemplar Solutions for Class 7 Science Chapter 10 provide thought-provoking questions that encourage deeper analysis of how respiration supports survival. Meanwhile, the NCERT Solutions for Class 7 Science give step-by-step solutions to textbook exercises, enabling effective revision. This chapter builds awareness of how oxygen is essential for life and energy production, linking biology to health and fitness. It also emphasizes the harmful effects of anaerobic respiration, such as muscle cramps caused by lactic acid. With practical examples and simple experiments, the chapter strengthens scientific understanding and prepares students for advanced studies in biology.