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⭐️ Check out our website https://www.cognito.org/ ⭐️ *** WHAT'S COVERED *** 1. The Structure of the Human Gas Exchange System * The path of air through the trachea, bronchi, bronchioles, and into the alveoli. * The role of respiration in body cells and the need for oxygen. * The removal of carbon dioxide as a waste product. 2. The Process of Gas Exchange in the Alveoli * An explanation of diffusion and concentration gradients. * How oxygen diffuses from the alveoli into the blood. * How carbon dioxide diffuses from the blood into the alveoli. 3. Adaptations of the Gas Exchange System * Specific adaptations of the trachea, bronchi, bronchioles, and alveoli. * The roles of cartilage, smooth muscle, elastic tissue, and ciliated epithelium. * Adaptations of the pulmonary blood vessels for efficient gas transport. *** EXAM BOARD SPECIFIC INFO *** AQA - You don't need to know about the role of macrophages in the human gas exchange system OCR - You don't need to know about the role of macrophages in the human gas exchange system CIE - Everything is relevant to your course! *** CHAPTERS *** 0:00 Introduction to the Human Gas Exchange System 0:24 Structure of the Human Gas Exchange System 2:15 How Gas Exchange Occurs in the Alveoli via Diffusion 3:50 Adaptations of the Human Gas Exchange System 4:03 Adaptations of the Trachea and Bronchi 5:43 Adaptations of the Bronchioles 6:28 Adaptations of the Alveoli 7:41 Adaptations of the Pulmonary Blood Vessels *** PLAYLISTS *** https://youtube.com/playlist?list=PLidqqIGKox7VzYfPIVt8T09xOLNcolCe4&si=8JmDajxjtba6rdc3 https://youtube.com/playlist?list=PLidqqIGKox7UZ3mWhbHv2aA_1vnbsfRPq&si=q3hEKdA4v7kbfwMe https://www.youtube.com/playlist?list=PLidqqIGKox7UTimdJ3eFcnt6xL9GUt2a6 https://youtube.com/playlist?list=PLidqqIGKox7XPh1QacLRiKto_UlnRIEVh&si=orIUwL3o2jOoiYjT https://youtube.com/playlist?list=PLidqqIGKox7X5UFT-expKIuR-i-BN3Q1g&si=DcihOwUkd9oWbbdp https://youtube.com/playlist?list=PLidqqIGKox7WeOKVGHxcd69kKqtwrKl8W&si=Y8MsO-FK948jnxpS https://youtube.com/playlist?list=PLidqqIGKox7UVC-8WC9djoeBzwxPeXph7&si=-7i5Iq7yOeJrhtu6 https://youtube.com/playlist?list=PLidqqIGKox7VKJD2WxRhoKaI6JGLVean8&si=NH_Q1ujhVgACM2FU #alevel #Biology #study #revision #school #exam #AQA #OCR #Edexcel
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