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Respiratory System Video Lecture | Biology Class 6 ICSE

FAQs on Respiratory System Video Lecture - Biology Class 6 ICSE

1. What is the main function of the respiratory system?

Ans. The main function of the respiratory system is to facilitate breathing, which involves inhaling oxygen from the environment and exhaling carbon dioxide produced by the body. This exchange of gases is essential for cellular respiration, allowing our cells to produce energy.

2. What are the major organs involved in the respiratory system?

Ans. The major organs involved in the respiratory system include the nose, pharynx, larynx, trachea, bronchi, and lungs. Together, these organs work to filter, warm, and moisten the air we breathe, and to enable the gas exchange process.

3. How does the process of breathing occur?

Ans. Breathing occurs through two main processes: inhalation and exhalation. During inhalation, the diaphragm contracts and moves downward, while the rib cage expands, creating a vacuum that draws air into the lungs. During exhalation, the diaphragm relaxes and the rib cage contracts, pushing air out of the lungs.

4. What role do alveoli play in the respiratory system?

Ans. Alveoli are tiny air sacs located in the lungs where the exchange of oxygen and carbon dioxide occurs. They provide a large surface area for gas exchange, allowing oxygen to enter the bloodstream and carbon dioxide to be expelled from the body.

5. Why is it important to keep the respiratory system healthy?

Ans. Keeping the respiratory system healthy is crucial because it ensures efficient gas exchange, which is vital for overall health and energy production. Poor respiratory health can lead to conditions like asthma, bronchitis, and pneumonia, affecting our ability to breathe and carry out daily activities.

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Oct 02, 2025 Last updated

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	Biology Class 6 ICSE 10 videos\|45 docs\|5 tests

Biology Class 6 ICSE

10 videos|45 docs|5 tests

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