⭐️ Check out our website https://www.cognito.org/ ⭐️ *** WHAT'S COVERED *** 1. Mass Transport Systems in Plants * Introduction to translocation (sugar transport) and transpiration (water transport). 2. Translocation via Phloem * How sugars made during photosynthesis are transported. * Structure of phloem cells and tubes (including sieve plates). * Movement of cell sap (sugar and water mixture). * Uses of transported sugars (energy and storage). * Bidirectional nature of phloem transport. 3. Water and Mineral Transport via Xylem * Structure of xylem tubes (dead cells, lignin reinforcement). * Transport pathway from roots to leaves. 4. Transpiration Process * Evaporation of water from leaves via stomata. * Explanation of the transpiration stream mechanism. 5. Factors Affecting Transpiration Rate * Influence of light intensity. * Influence of temperature. * Influence of air flow (wind). * Influence of humidity. * Role of water concentration gradients. *** CHAPTERS *** 0:00 Introduction to Mass Transport Systems 0:11 Translocation (Sugar Transport) 0:36 Phloem Structure and Function 1:26 Xylem Structure and Function 1:55 Transpiration and the Transpiration Stream 2:47 Factors Affecting Transpiration Rate 2:59 Light Intensity 3:26 Temperature 3:39 Air Flow and Humidity *** PLAYLISTS *** Maths Playlist: https://youtube.com/playlist?list=PLidqqIGKox7XPh1QacLRiKto_UlnRIEVh&si=orIUwL3o2jOoiYjT GCSE Biology Playlist: https://youtube.com/playlist?list=PLidqqIGKox7X5UFT-expKIuR-i-BN3Q1g&si=DcihOwUkd9oWbbdp GCSE Chemistry playlist: https://youtube.com/playlist?list=PLidqqIGKox7WeOKVGHxcd69kKqtwrKl8W&si=Y8MsO-FK948jnxpS 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