Another function of a central vacuole is that it pushes all contents of the cell's cytoplasm against the cellular membrane, and thus keeps the chloroplasts closer to light. Most plants store chemicals in the vacuole that react with chemicals in the cytosol. read more
The central vacuole has a number of roles in plant cells, some of which include storing of salts, nutrients, pigments, minerals, proteins, aiding the growth of the plant and playing a vital structural role for the plant. read more