The correct answer is Sucrose. Explanation & Key Takeaways: • Disaccharides-Two monosaccharides combine to form a disaccharide. • Examples of carbohydrates having two monomers include- Sucrose, Lactose, Maltose. • Sources of Carbohydrates • Simple sugars are found in the form of fructose in many fruits. • Galactose is present in all dairy products. • Lactose is abundantly found in milk and other dairy products. • Maltose is present in cereal, beer, potatoes, processed cheese, pasta, etc. • Sucrose is naturally obtained from sugar and honey containing small amounts of vitamins and minerals. Related Concepts: • Simple carbohydrates have one or two sugar molecules. • In simple carbohydrates, molecules are digested and converted quickly resulting in a rise in blood sugar levels. • They are abundantly found in milk products, beer, fruits, refined sugars, candies, etc. • These carbohydrates are called empty calories, as they do not possess fibre, vitamins and minerals. • Plants, being producers, synthesize glucose (C_(6)H_(12)O_(6)) using raw materials like carbon dioxide and water in the presence of sunlight. • This process of photosynthesis converts solar energy to chemical energy. • Consumers feed on plants and harvest energy stored in the bonds of the compounds synthesized by plants. • Monosaccharides-Glucose is an example of a carbohydrate monomer or monosaccharide. Other examples of monosaccharides include mannose, galactose, fructose, etc. • Disaccharides-Two monosaccharides combine to form a disaccharide. Examples of carbohydrates having two monomers include- Sucrose, Lactose, Maltose, • Oligosaccharides-Carbohydrates formed by the condensation of 2-9 monomers is called oligosaccharides. By this convention, trioses, pentoses, hexoses are all oligosaccharides.