A-Level Biology Revision Biological Molecules Monosaccharides Alpha and Beta Glucose Disaccharides Properties and Roles of Water - part 1 Properties and Roles of Water - part 2 Structure and Properties of Starch - part 1 Structure and Properties of Starch - part 2 Structure and Properties of Glycogen Structure and Functions of Cellulose Amino Acids Protein Structure 1 Protein Structure 2 Bonding in Proteins Globular Proteins 1 Globular Proteins 2 Fibrous Proteins Triglycerides Phospholipids and Cholesterol Testing for Biological Molecules 1 Testing for reducing and non-reducing sugars Using a colorimeter to quantify glucose 1 Using a colorimeter to quantify glucose 2 A-Level Biology Videos