Answer the following question given this paragraph: 

Vacuoles are membrane-bound organelles that can have secretory, excretory, and storage functions. Many organisms will use vacuoles as storage areas and some plant cells have very large vacuoles. Vesicles are much smaller than vacuoles and function in transporting materials both within and to the outside of the cell.


Q: What are membrane-bound organelles that can have secretory, excretory, and storage functions?


A:
vacuoles