An amyloplast is a type of leucoplast located in the cytoplasm of a plant cell. It acts as a storage area for amylopectin. The amyloplast can use polymerization to turn glucose into starch.
An amyloplast does not contain pigments and is a type of plastid. Plastids that do not have pigmentation are generally associated with the storage of food. The plastids involved in the making of food contain pigments that make them appear colored.
Amyloplasts are able to convert starch back in to sugar if the plant is in need of energy. Fruit and potato plants are two common plants that contain large amounts of amyloplasts.