Cambridge or Edexcel · Cambridge and Pearson Edexcel Ordinary Level (O-Level) · Biology · Human nutrition
Human Nutrition Part 2: Absorption and Assimilation
English · 7:56 · v.1 · A lesson by Teachly.lk
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About this lesson
Follow digested food out of the gut, into the blood and into your cells. Includes the three practicals you need for the exam. You will learn: • Absorption in the ileum and water absorption in the colon • Egestion vs excretion • How the ileum is adapted: length, folds, villi and microvilli • Inside a villus: capillaries and the lacteal • Diffusion, active transport and osmosis • The hepatic portal vein and the liver • Assimilation: how cells use glucose, fats and amino acids • Practical 1: amylase and starch • Practical 2: a model gut with Visking tubing • Practical 3: pepsin, acid and egg white • Exam-style questions with answers This is part 2 of 2 in Human nutrition Part 1 – Digestion Part 2 – Absorption and assimilation (this lesson) © 2026 teachly.lk. All rights reserved. This lesson and its animations are original teachly.lk content. Please do not copy, download, re-upload or share it outside teachly.lk without permission. teachly.lk is an independent learning resource and is not affiliated with Cambridge Assessment International Education.
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