IBDP Biology B1.1 | Carbohydrates and Lipids | Starch Glycogen and Cellulose | Structure, Functions

Welcome to *IB DP Biology with Prashant Kumar!* 🧬 In this lesson, we explore **IBDP Biology B1.1 – Carbohydrates and Lipids**, focusing on their molecular structures, types, biological functions, and importance in living organisms. Carbohydrates and lipids are essential biological molecules involved in energy supply, energy storage, cellular structure, and other vital life processes. This lesson will help you understand key concepts and prepare effectively for IB Diploma Programme Biology examinations. 📚 Topics Covered 🔹 *1. Carbohydrates* Structure and general formula of carbohydrates Monosaccharides: glucose, fructose, and galactose Disaccharides: maltose and sucrose Glycosidic bond formation Polysaccharides: starch, glycogen, cellulose, and chitin Functions of carbohydrates in energy storage and structural support 🔹 *2. Lipids* Properties and biological importance of lipids Triglycerides: glycerol and fatty acids Phospholipids and their role in cell membranes Steroids, including cholesterol Waxes and their protective functions Roles of lipids in long-term energy storage, insulation, and signalling 🔹 *3. Carbohydrates vs Lipids* Differences in chemical composition and structure Solubility and energy storage Energy yield per gram Biological functions and examples 🔹 *4. Key IB Biology Concepts* Structure–function relationships Biological molecules and their roles in living organisms Important terminology for examination answers Revision of essential concepts through visual learning 🎯 Learning Outcomes By the end of this lesson, you should be able to: Distinguish between monosaccharides, disaccharides, and polysaccharides. Explain the functions of starch, glycogen, cellulose, and chitin. Describe the structure and functions of triglycerides and phospholipids. Compare carbohydrates and lipids as energy-storage molecules. Apply appropriate biological terminology in IB examination questions. 👩‍🎓 Who Should Watch? IB Diploma Programme Biology SL and HL students Students revising biological molecules Students preparing for IB Biology assessments and examinations Learners who prefer visual explanations and concise revision resources 📌 *Subscribe to IB DP Biology with Prashant Kumar* for more Biology lessons, visual explanations, examination preparation, and revision resources. 👍 Like the video, share it with your classmates, and comment below with any questions. #IBDPBiology #IBBiology #CarbohydratesAndLipids #BiologyRevision #IBBiologySL #IBBiologyHL #BiologicalMolecules #IBExamPreparation