 In nature, sucrose is present in many plants, and in particular their roots, fruits and nectars, because it serves as a way to store energy, primarily from photosynthesis.Many mammals, birds, insects and bacteria accumulate and feed on the sucrose in plants and for some it is their main food source.Seen from a human consumption perspective, honeybees are especially important because they accumulate sucrose and produce honey, an important foodstuff all over the world.