Osmosis
It eliminates excess water from the cytoplasm of freshwater protists.
control water balance
Living in fresh water, a hypotonic environment, causes water to enter the cell of certain protists (protozoa ) and would lysis the cell unless there were a way to expel this water. This is what contractile vacuoles do. When the fill with enough water microfilament contraction expels the excess water from the vacuole and helps the cell maintain internal isotonicity.
Vacuoles are membrane bounded sacs present in the cytoplasm of the cell. The function of a vacuole is to provide structural support in mature plants , as well as providing storage of food temporarily. A vacuole also serves functions of waste disposal, protection, cell growth etc.
Those cells include a single flagellum that surrounded by a contractile collar of microvilli. The choanocytes are responsible for moving water through the sponge and for obtaining food.
In plants, the vacuole stores food, water, and enzymes, and absorbs the waste products in the cell. In animal cells, smaller vacuoles are used to transport lipids and proteins out of the cell.
The special vesicles containing enzymes are called Lysosomes.
A specific type of vacuole, called a contractile vacuole expels excess water from many fresh water protists.
The water content is expelled by the contractile vacuole.
paramecium has the contractile vacuole yooo!
a contractile vacuole
The Contractile Vacoule.
No they do not have contractile vacuoles.
It is Contractile Vacoule. Contractile Vacoule, a structure that collects the extra water and then expels it from the cell.
A vacuole is an organelle found in plants that used for storing water and other materials(like waste).
Contractile vacuoles are found in aquatic protists.They remove excess water.
If a paramecium did not have a contractile vacuole or it did not work it would fill with water and lyse.
contractile vacuole
no they have only one contractile vacuole because of it's environment, soil or water. A paramecium has two contractile vacuoles.