Vacuole

The vacuole is a membrane-bound organelle predominantly found in plant and fungal cells, serving as a central hub for storage, homeostasis, and degradation. It maintains cellular turgor pressure for structural support, stores water, ions, nutrients, and pigments, and facilitates waste degradation through hydrolytic enzymes—functionally analogous to lysosomes in animal cells. Its role is indispensable for plant growth, development, and stress responses.