Vacuoles are membrane-bound sacs within the cytoplasm of a cell that function in several different ways. In mature plant cells, vacuoles tend to be very large and are extremely important in providing structural support, as well as serving functions such as storage, waste disposal, protection, and growth.
The contents of the vacuole, referred to as vacuolar sap, is 90 to 98 percent water. The vacuole of a typical plant cell occupies approximately 500,000 cubic micrometers. It would take approximately two million of these vacuoles to equal the volume of a sugar cube.
Vacuole is a physical component of plant and animal cells. It is one of those few cellular properties that are found in both plants and animals. However, the vacuoles found in plants are much larger than those found in animals. A vacuole is a small sac like structure in plant cells that stores food or nutrients, water and also waste.
The vacuole is located in the cytoplasm in both animal and plant cells. It has a single membrane surrounding a fluid filled space. Its function is to store food, water, and minerals for the cell.