Breathing and Exchange of Gases Class 11 Notes
Class 11 Biology Chapter 17 Breathing and Exchange of Gases Notes - PDF Download
Breathing and Exchange of Gases Class 11 Notes are cumulated by our panel of highly experienced teachers to provide the students with effective exam preparation. The pdf includes the summary of the chapter, important points to remember and detailed explanation of important concepts and derivations for better understanding and retaining of the chapter. Going through these Breathing and Exchange of Gases Class 11 Notes would easily help students to grasp challenging concepts which would ultimately lead them to score maximum marks in their exams.
Understanding Breathing and Exchange of Gases.
Breathing is movement of thorax, expansion (inflation) and deflation of lungs and flow of air into the lungs and from the lungs. It is extracellular, energy consuming and physical process. Sum of inspiration and expiration is called respiratory movement. There are two steps of breathing: Inspiration and Expiration.
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