The vacuolar membrane, also known as the tonoplast, is the cytoplasmic membrane that surrounds a vacuole and separates its contents from the cytoplasm of the cell.
The primary function of the central vacuole is to maintain turgor pressure against the cell wall.
Aquaporins, which are proteins found in the tonoplast, regulate the flow of water into and out of the vacuole by actively pumping potassium (K+) ions into and out of the vacuolar interior.
No, tonoplast is not found in the animal cell. It is found in plant cells.