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⭐️ Check out our website https://www.cognito.org/ ⭐️ *** WHAT'S COVERED *** 1. Definition of homeostasis. * Maintaining a stable internal environment for optimal cell function. * Conditions regulated include temperature, pH, glucose, and water levels. 2. How homeostasis responds to changes. * Adapting to both internal and external environmental conditions. 3. Automatic control systems in the body. * The general mechanism for maintaining balance. * Key components: Receptors, coordination centres, and effectors. 4. Communication within control systems. * The role of the nervous system (using fast electrical impulses via nerves). * The role of the endocrine system (using hormones transported in the bloodstream). 5. The negative feedback mechanism. * Explanation of how deviations from the norm trigger corrective responses. * Illustrated with the example of body temperature regulation (shivering and sweating). *** CHAPTERS *** 0:00 What is Homeostasis? 0:17 Why Homeostasis is Important for Cells 0:36 How the Body Regulates Conditions 0:54 Definition of Homeostasis 1:10 Responding to Internal and External Changes 1:35 Automatic Control Systems 1:55 Components of Control Systems (Receptors, Coordination Centres, Effectors) 2:31 Communication via Nervous & Endocrine Systems 3:32 The Negative Feedback Mechanism 4:04 Negative Feedback Example: Body Temperature *** PLAYLISTS *** Maths Playlist: https://youtube.com/playlist?list=PLidqqIGKox7XPh1QacLRiKto_UlnRIEVh&si=orIUwL3o2jOoiYjT GCSE Chemistry playlist: https://youtube.com/playlist?list=PLidqqIGKox7WeOKVGHxcd69kKqtwrKl8W&si=Y8MsO-FK948jnxpS GCSE Biology Playlist: https://youtube.com/playlist?list=PLidqqIGKox7X5UFT-expKIuR-i-BN3Q1g&si=DcihOwUkd9oWbbdp GCSE Physics Playlist: https://youtube.com/playlist?list=PLidqqIGKox7UVC-8WC9djoeBzwxPeXph7&si=-7i5Iq7yOeJrhtu6 Alevel Biology Playlist: https://youtube.com/playlist?list=PLidqqIGKox7VKJD2WxRhoKaI6JGLVean8&si=NH_Q1ujhVgACM2FU #GCSE #Biology #study
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