What are the functions of vacuoles in the body of unicellular organisms?

Vacuoles are membrane-bound structures that are mostly closed compartments that are filled with both inorganic and organic molecules along with water to support the organelle. Vacuoles can also contain solutions of enzymes and sometimes particulate matter that have been absorbed. There is no typical size or shape for a vacuole; it can vary depending on what an individual cell requires. They are formed by the fusion of several different vesicles. Vacuoles can serve a wide variety of functions in the cell, and their importance depends on what role they play in the cell. Typically, their job is to isolate harmful materials, store waste, store valuable water in the cage, maintain pressure inside the cage, balance the pH of the cage, remove food from the cage, and store proteins for seed germination.