A-Level Biology - Absorption - Adaptations of Ileum | Absorption of Glucose & Lipids (2026/27 exams)

⭐️ Check out our website https://www.cognito.org/ ⭐️ *** WHAT'S COVERED *** 1. Structure and adaptations of the ileum * How villi and microvilli increase surface area to maximise absorption rates * The importance of a rich blood supply and lacteals for maintaining diffusion gradients 2. Absorption of amino acids and monosaccharides * How co-transport allows absorption against concentration gradients * The specific mechanism involving sodium ions and active transport for glucose absorption 3. Absorption of lipids * How micelles assist in the movement of fatty acids and monoglycerides * The process of reforming triglycerides, packaging them into chylomicrons, and removal via the lymphatic system *** EXAM BOARD SPECIFIC INFO *** AQA - Everything is relevant to your course! OCR - This video isn't on your course CIE - This video isn't on your course *** CHAPTERS *** 0:00 Introduction to absorption 0:24 Structure & adaptations of the ileum 2:04 Absorption of amino acids & carbohydrates 2:41 Co-transport of glucose mechanism 4:05 Absorption of lipids & chylomicrons *** PLAYLISTS *** https://youtube.com/playlist?list=PLidqqIGKox7VzYfPIVt8T09xOLNcolCe4&si=8JmDajxjtba6rdc3 https://youtube.com/playlist?list=PLidqqIGKox7UZ3mWhbHv2aA_1vnbsfRPq&si=q3hEKdA4v7kbfwMe https://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