EVERYDAY SCIENCE

Detailed explanation-1: -The contractile vacuole is an osmoregulatory organelle found in amoebae. It gathers water and waste from the body, swells up, rises to the surface, then bursts to release its contents into the environment. The majority of excretion occurs through simple diffusion across the body’s surface.

Detailed explanation-2: -Complete answer: The body of amoeba is covered with plasmalemma which is a selectively permeable membrane. This plasmalemma is excretory in nature and the diffusion of ammonia takes place through plasmalemma.

Detailed explanation-3: -Final Answer: Excretory organs in Amoeba are Contractile vacuoles.

Detailed explanation-4: -In Amoeba, the waste material is ammonia rather than carbon dioxide. It is excreted through the process called diffusion from the surface of the body to the surrounding water. Amoeba has no excretory organs like most multicellular animals.

Detailed explanation-5: -Since amoeba is unicellular, it does not have any special excretory organs. The undigested food particles to be excreted are present in the food vacuole.