There is always one nucleus and one vacuole, but both may be more numerous.
We have received the impression that we have here to deal with a vacuole filled with substance secreted by the cell.
The number of the vacuole containing cells is 15-20% of the colourless blood corpuscles.
At each end of the cell is a vacuole containing small granules that show an active dancing movement.
These masses of food seem to be inclosed within a little area containing fluid, called a vacuole.
This is done by pulsation of the vacuole, which ultimately bursts, passing fluid waste to the outside.
Later on this vacuole disappears, and the grains of pigment make their appearance.
vacuole vac·u·ole (vāk'yōō-ōl')
A small cavity in the cytoplasm of a cell, bound by a single membrane and containing water, food, or metabolic waste.
A small space or cavity in a tissue.
A cavity within the cytoplasm of a cell, surrounded by a single membrane and containing fluid, food, or metabolic waste. Vacuoles are found in the cells of plants, protists, and some primitive animals. In mature plant cells, there is usually one large vacuole which occupies a large part of the cell's volume and is filled with a liquid called cell sap. The cell sap stores food reserves, pigments, defensive toxins, and waste products to be expelled or broken down. In the cells of protists, however, there may be many small specialized vacuoles, such as digestive vacuoles for the absorption of captured food and contractile vacuoles for the expulsion of excess water or wastes. See more at cell.