Function of vacuole membrane

Vacuoles Definition

• A vacuole is a membrane-bound organelle that is present in all plant and fungal cells and some protist, animal and bacterial cells.
• The most conspicuous compartment in most plant cells is a very large, fluid-filled vacuole.

  Large vacuoles are also found in three genera of filamentous sulfur bacteria, the Thioploca, Beggiatoa, and Thiomargarita.

• However, the function and significance of vacuoles vary greatly according to the type of cell having much greater prominence in the cells of plants, fungi, and certain protists than those of animals and bacteria.
• There may be several vacuoles in a single cell.

  Each vacuole is separated from the cytoplasm by a single unit membrane, called the tonoplast.

• Generally, they occupy more than 30 percent of the cell volume; but this may vary from 5 percent to 90 percent, depending on the cell type.

Figure: Diagram of Vacuoles

Structure of Vacuoles

• They generally have no basic sha