The vacuoles and inclusions are places inside the cell in which substances accumulate. If they are surrounded by a membrane they are called vacuoles; otherwise, inclusions.
They are organelles surrounded by a simple membrane, with a rounded shape and containing substances that are not involved in any metabolic process. They are formed in young cells, by fusion of vesicles derived from the endoplasmic reticulum and the Golgi apparatus.
The animals eukaryotic cells have vacuoles enough. The eukaryotic plant cells, when they are young, have many vacuoles, but when they are mature they can have a single cell that occupies 90% of the cell volume.
Inside the vacuole is the amorphous vacuolar juice, formed by water and which can contain various storage or waste substances.
The set of vacuoles in a cell is called a vacuome.