The vacuole is a membrane-bound organelle found in plant and fungal cells. It is a fluid-filled sac that stores various substances such as water, nutrients, pigments, and waste products. The main function of the vacuole is to maintain the cell's turgor pressure and osmotic balance by regulating the movement of water into and out of the cell. It also acts as a storage compartment, helping to store and release ions, sugars, and other organic compounds needed for cell metabolism. Additionally, the vacuole plays a role in cell growth and development, as well as in the maintenance of pH levels within the cell.
