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Differences in Inspired & Expired Air

Reason for Differences Between Inspired & Expired Air Table

Reason for Differences Between Inspired & Expired Air Table

The document Differences in Inspired & Expired Air is a part of the Class 10 Course Biology for GCSE/IGCSE.
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FAQs on Differences in Inspired & Expired Air

1. What are the main differences between inspired and expired air?
Ans. Inspired air contains a higher concentration of oxygen and a lower concentration of carbon dioxide compared to expired air. Inspired air is also warmer and more humid than expired air.
2. How does the body utilize oxygen from inspired air differently from expired air?
Ans. The respiratory system extracts oxygen from inspired air and delivers it to cells for cellular respiration, where it is used to produce energy. Expired air contains less oxygen as it has been used by the body and more carbon dioxide due to the waste product of cellular respiration.
3. Why does expired air contain more carbon dioxide than inspired air?
Ans. Expired air contains more carbon dioxide because it is a waste product produced by cells during cellular respiration. The body exhales this carbon dioxide to remove it from the bloodstream.
4. How does the temperature and humidity of inspired air differ from expired air?
Ans. Inspired air is warmed and humidified by the respiratory system before it reaches the lungs. In contrast, expired air is cooler and less humid as it has already passed through the respiratory system and exchanged gases with the blood.
5. What role does the respiratory system play in maintaining the balance of gases in inspired and expired air?
Ans. The respiratory system helps to regulate the levels of oxygen and carbon dioxide in the body by exchanging gases with the external environment. It ensures that the body receives enough oxygen for cellular respiration and removes excess carbon dioxide through expiration.
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