Saccharides are a former generic name of carbohydrates.Carbohydrates are the fuel of the body: they are our main source of energy.On the other hand, unlike proteins and lipids, they are not essential nutrients, since our body knows how to make them from other nutrients. <u>ABOUT THE EXERCISE:</u> -The first proposition is false because: Maltose = glucose + glucose -The second proposition is correct, Sucrose is also called table sugar (it is the that are used for pastry and bakery -The third proposition is false because glycogen is a polysaccharide -The fourth proposition is false too, the correct equation is glucose + galactose yields lactose.