1. VACUOLE By: Patrick Battista and Jack Davis

2. Structure  A vacuole is a mass of fluid surrounded by a membrane.  Vacuoles are different in plant and animal cells.  In plant cells, the vacuole is much larger and contains water.  In animal cells, the vacuole contains nutrients.  The organelle has no basic shape or size; its structure varies according to the needs of the cell.

3. What It Looks Like

4. Where It’s Located Plant Cell Animal Cell

5. Functions  Isolates materials that might be harmful or a threat to the cell  Contains waste products  Contains water in plant cells  Maintains an acidic internal pH  Contains small molecules  Exports unwanted substances from the cell  Allows plants to support structures such as leaves and flowers due to the pressure of the central vacuole  In seeds, stored proteins needed for germination are kept in 'protein bodies', which are modified vacuoles

6. Cells That Have This Organelle  All plant cells  All fungal cells  Some Protist cells  Animal cells  Bacterial cells

7. Work Cited  http://biology.clc.uc.edu/courses/bio104/cells.htm http://biology.clc.uc.edu/courses/bio104/cells.htm  http://library.thinkquest.org/C004535/media/vac uoles.gif http://library.thinkquest.org/C004535/media/vac uoles.gif  http://plantphys.info/cell/vacuole.gif http://plantphys.info/cell/vacuole.gif  http://www.cellsalive.com/cells/vacuole.htm http://www.cellsalive.com/cells/vacuole.htm  http://www.biologycorner.com/resources/parameci um.gif http://www.biologycorner.com/resources/parameci um.gif  http://jessicas.tpmsmagnet.com/animalcell/images/ vacuole.jpg