- flour, a polysaccharide glucose caused thousands of molecules connected water soluble little with molecular formula (C6H10O5) n structure has both a direct line length. And a branch. The dough is a form of carbohydrate in plants using collecting food. The plant is changed from glucose in the photosynthesis process to come in the form of a powder and then stored on different parts, especially in the seeds. And headed into the soil.