What is Contractile vacuole?
[[File:Paramecium contractile vacuoles.jpg|thumb|Protist ''[[Paramecium aurelia]]'' with contractile vacuoles]] A '''contractile vacuole''' ('CV') is found in many cells. It pumps water in and out of the cell through [[osmoregulation]]. In this way regulates osmotic pressure. [[Category:Organelles]] {{-}} {{biology-stub}}