Answer:
Vesicles and vacuoles can be described as organelles which are membrane-bound and usually are used for storage. The membrane of a vesicle fuse with the membrane of the other cells but the membranes of a vacuole do not fuse with other membranes.
Vacuoles are used to maintain the pressure in a cell and they are larger than vesicles. Plant cells have a large vacuole in the centre of the cell to maintain the turgidity of the cell.
The structure is called the Eustachian tube.
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