Question

What will happen if contractile vacuole is absent in amoeba? Give two points. ​

Answer 1

Answer:

The contractile vacuole is present in amoeba but absent in Entamoeba because Amoeba lives in water and needs osmotic regulation. ... Since the osmotic concentration of its body remains equal to its surroundings entry of water through osmosis will not happen. Therefore, there is no need of contractile vacuole.

Answer 2

Amoeba will die in absence of contractile vacoule.

• Contractile vacoule is usually spherical membrane bound cell organelle. It is generally present in freshwater protozoa and lower metazoa.
• The freshwater contains less solute concentration in comparison to that in the cell. This leads to endosmosis and hence accumulation of water inside the cell.
• Absence will cause 1. loss of osmoregulation 2. cell death due to endosmosis.