Final answer:
Vacuoles are membrane-bound organelles that store substances, maintain pressure within cells, and enable waste removal. They have additional functions in plant cells, such as providing structural support and carrying out digestion.
Step-by-step explanation:
Vacuoles are membrane-bound organelles found in the cells of plants, fungi, and certain protists. They have several functions, including storing substances, maintaining pressure within the cell, and enabling waste removal. In plant cells, vacuoles can also help provide structural support. For example, the central vacuole in plant cells stores water and nutrients, helps maintain turgor pressure, and contributes to cell expansion. In some unicellular organisms, vacuoles can even carry out digestion, using enzymes to break down molecules.
Learn more about The function of vacuoles