Question

Vacuoles are structures found in many cells. Their job is to store materials needed for the cell. Paramecia and other unicellular organisms often have a special vacuole called a contractile vacuole. Consider what the word “contractile” means. How would this structure help this organism better survive in its moist environment?

Answer 1

Contractile means the ability of an organism to withhold, reduce in size or shrink.

A contractile vacuole will help this organism better survive in its moist environment by preventing or stopping the cell from absorbing too much water from its moist environment.

• A contractile vacuole is an organelle that can be found in organisms that are said to be single-celled (Unicellular organisms).

• One of the primary functions of a contractile vacuole is to absorb excess water from the protoplasm in the unicellular organism and release this water to the surrounding environment.

• A contractile vacuole can be called the excretory organ of unicellular organisms. This is because it is involved in osmoregulation.

• A contractile vacuole will help this organism better survive in its moist environment by preventing or stopping the cell from absorbing too much water from its moist environment.

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