Question

The process of obtaining food for amoeba is ______
A. Dialysis
B. Cytosinesis
C. Photocytosis
D. Endocytosis

Answer 1

An amoeba, also referred to as an amoeboid, is a cell or unicellular organism which can change its shape or is flexible for its shape, primarily by extending and retracting pseudopods. Amoebae usually ingest their food by phagocytosis, extending pseudopods to surround and engulf live prey.

Complete answer:
Amoebae do not form a single taxonomic group; instead, they are found in each major lineage of eukaryotic organisms. Amoeboid cells occur not only among the protozoa, but also among the fungi, algae, and animals. Amoebae do not have cell walls, that allows them to move freely. Amoebae move and feed by using only pseudopods. To regulate osmotic pressure, most of the freshwater amoebae have a contractile vacuole which removes excess water from the cell.
Amoeba possesses a holozoic mode of nutrition and method is known as “phagocytosis”. Amoeba feeds in its food through this process. Initially, it pushes out the pseudopodia so that it can surround the food. After this, it engulfs the food, which then forms a bag-like structure called food vacuole. The whole process is known as “phagocytosis”. Phagocytosis is a process of endocytosis. Endocytosis is a cell process of amoeba in which substances are brought into the cell.

So the right answer is Option D ( Endocytosis).

Additional Information: Amoebas are classified as protists with no distinct head or tail. The habitat of amoebas is small areas of water such as freshwater pools, ponds, lakes, streams, and ditches. They can also be found in salty areas. Amoebae have been known to cause a range of human diseases. Amoebic dysentery is an amoebic infection which is caused by Entamoeba histolytica, a human intestinal parasite.

Note:
One or more pseudopodia may be produced at a time depending on the organism, but all amoeboid movement is characterized by the movement of organisms with an amorphous form that possesses no set motility structures. Movement occurs when the cytoplasm slides and forms a pseudopodium in front to pull the cell forward.