Phospholipids Explained | A-Level Biology – Biological Molecules

Phospholipids Explained (Structure, Properties & Bilayer Formation) | A-Level Biology – Biological Molecules | Lecture 40 Welcome back to Biology With Sami! 🎓 In this lecture, we dive into *phospholipids*, one of the most essential biological molecules in all living organisms. You’ll learn how phospholipids are structured, how they differ from triglycerides, and how their unique properties allow them to form the phospholipid bilayer the foundation of every cell membrane. 📌 What You’ll Learn in This Video: Structure of a phospholipid The hydrophilic head and hydrophobic tails Why phospholipids are amphipathic How phospholipids arrange into a bilayer How this structure affects membrane fluidity Key differences between triglycerides and phospholipids Where phospholipids are found in living organisms 📚 Timestamps 00:00 Intro 00:40 What Are Phospholipids? 01:20 Structure: Head + Tails 03:10 How Phospholipids Form a Bilayer 06:00 Hydrophobic and Hydrophilic 📍 Like & Subscribe for the next lectures on biological molecules 📍 Comment any questions 📍 Watch Lecture 39 first to understand triglyceride structure #ALevelBiology #Phospholipids #CellMembrane #Bilayer #BiologicalMolecules #BiologyWithSami #ASBiology #FluidMosaicModel #Lipids #alevelbiology #triglycerides #EsterBond #lipids #saturatedfats #UnsaturatedFats #biologywithsami #biologicalmolecules #asbiology #fattyacids #biology #education #alevelbiology #biological #cambridge #aqa #ocr #edexcel #alevel