contractile vacuole

Corey Philipp cphilipp at
Tue Feb 24 20:06:29 EST 1998

Snermie wrote:

> Hello. I am a 9th grader in Ohio. In Biology we have an assignment and mine
> happens to be on contractile vacuoles. The question i must answer is : What is
> their importance??? well , to go along w/this assignment we are making a web
> page. I need some info on contractile vacuoles. please help me out!!
> thanx!!
> Snermie at

A contractile vacuole is a membrane bound organelle that is used to regulate the
amount of water in a cell.  For example the Perimecium caudatum have a few
contractile vacuoles.  Mostly contractile vacuoles are usefull for an organism
when their in a hypotonic solution.  When the P. caudatum are in hypotonic
solution, they often empty their vacuole, to keep from exploding.  This can also
be termed a homeostatic mechanism.  Look in your bio. book for more info.   Or
search for the P. caudatum and you will find more information and pictures.

Corey Philipp
Albion College, Michigan

More information about the Cellbiol mailing list