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because marine species are usually in isotonic equilibrium with their environment.

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Marine protoza do not have contractile vacule?

That's correct, marine protozoa do not have contractile vacuoles. Contractile vacuoles are typically found in freshwater protozoa and serve to regulate water balance by expelling excess water from the cell. Marine protozoa have adaptations to maintain water balance in a high-salt environment without the need for contractile vacuoles.


Which organelle is present in a paramecium protozoa but absent in the cells of a strawberry plant?

A contractile vacuole is present in a paramecium protozoa but absent in the cells of a strawberry plant. The contractile vacuole helps regulate water content in paramecium cells by expelling excess water, a function not needed in plant cells due to their rigid cell walls.


What organelle is used to remove excess water from protozoa?

Contractile Vacuole


What organelle helps move excess water?

A specific type of vacuole, called a contractile vacuole expels excess water from many fresh water protists.


Who has contractile vacuole amoeba or paramecium?

paramecium has the contractile vacuole yooo!


What organelles function in the maintenance of water balance in freshwater protozoa?

plasma membrane. it controls the water movement through osmosis.


What has a contractile properties?

a contractile vacuole


Organelle that pumps water out of the cell?

The Contractile Vacoule.


What structure expels excess water in the amoeba?

The contractile vacuole is the structure in amoeba responsible for expelling excess water and maintaining osmotic balance within the cell. It collects and removes the excess water by contracting and expelling it out of the cell.


What is the function of the contractile vacuole and what would happen it did not have this organelle?

The contractile vacuole is an organelle found in some unicellular organisms, such as protozoa, that functions to regulate osmotic pressure by expelling excess water from the cell. This helps maintain cellular homeostasis and prevents the cell from bursting due to osmotic influx. Without the contractile vacuole, these organisms would struggle to manage water balance, leading to potential cell lysis and ultimately impairing their survival in freshwater environments.


Excess water is removed by what kind of vacuole?

contractile vacuole


Does an amoeba have more than one contractile vacuole?

No, an amoeba typically has one contractile vacuole, which is responsible for expelling excess water and waste from the cell. The contractile vacuole helps to regulate the osmotic balance of the cell by maintaining the proper water content.