| Secretory cells either contain many small vacuoles or a single larger vacuole with flocculent contents and numerous vesicles. |
| The storage of waste materials is a very important function of the vacuole, since plants cannot excrete their wastes the way animals do. |
| Myzocytotic uptake of prey cell cytoplasm leads to a food vacuole with a single membrane separating two cytoplasmic compartments. |
| Control cells make approximately one food vacuole per minute and therefore appear full of black dots. |
| Ion-selective microelectrodes have been used to measure the activities of ions in the apoplast, cytosol and vacuole of single cells. |
| Notice the collapsing contractile vacuole in the lower middle of the frame. |
