Amoeba is a unicellular organism and its nutrition depends upon bacteria and microscopic plants.
The process of obtaining food by amoeba is called endocytosis.
It can be called phagocytosis if the food particle is solid and pinocytosis if the food particle is liquid in nature.
The various steps involved in the nutrition of amoeba are-
Ingestion: Amoeba has a flexible membrane and fingerlike projections which are called pseudopodia. This is pseudopodia surrounds the food particle and and engulf it inside the cell.
Digestion: Food particle is kept inside a vacuole in which various digestive enzymes helps in the digestion of food by breaking it down into further smaller particles.
Absoption: After the digestion of food it is assimilated in the cell and nutrition is obtained.
Egestion: The waste material after the digestion of the food is excreted from the cell by the process of egestion.
