EVERYDAY SCIENCE

Detailed explanation-1: -Contractile vacuoles are found in fresh water protozoans and they help in osmoregulation. They expel extra water from fresh water protozoans and prevent cell bursting.

Detailed explanation-2: -Contractile vacuoles are specialized in order to regulate the water content of cells. It is spherical in shape and collects excess fluid from the cell and empties it outside. It is pivotal in maintaining the cell’s osmotic pressure. Protists are unicellular eukaryotes that exist in aquatic and damp environments.

Detailed explanation-3: -The contractile vacuole (CV) complex is an osmoregulatory organelle of free-living amoebae and protozoa, which controls the intracellular water balance by accumulating and expelling excess water out of the cell, allowing cells to survive under hypotonic stress as in pond water.

Detailed explanation-4: -Protist (biology definition): Any of a group of eukaryotic organisms belonging to the Kingdom Protista. Protists include: (1) protozoa, the animal-like protists, (2) algae, the plant-like protists, and (3) slime molds and water molds, the fungus-like protists.