Nutrition in Amoeba

What is an Amoeba?

A type of cell or unicellular organism which has the capability to change its shape, primarily by extending and retracting pseudopodia is known as an Amoeba. An amoeba is found in every major lineage of eukaryotic organisms.  

Mode of Nutrition in Amoeba

Amoeba takes its nutrition through a process called phagocytosis where the entire organism swallows the food it plans on eating up. The mode through which an amoeba engulfs nutrition is known as holozoic nutrition. It leads to the process of  ingestion, digestion and egestion of food material. Amoeba doesn’t not have any specialized organs for nutrition. Its entire process is carried through the body surface with the assistance of pseudopodia.

Process of Nutrition in Amoeba

The process by which organisms engulfs nutrition inside the body either solid or liquid food is called the Holozoic Nutrition. The intake of nutrition takes place in the in the following 5 steps:

  • Ingestion

  • Digestion

  • Absorption

  • Assimilation

  • Egestion


Explained Process Of Nutrition In Amoeba

The processes involved in holozoic nutrition in amoeba are:

  • Ingestion

The process of taking in the food into the body either by swallowing or absorbing it is called the procedure of Ingestion. Amoeba oozes out the pseudopodia to encircle the food and engulfs it forming a food vacuole. This process is known as phagocytosis. 

  • Digestion

The process of breaking the insoluble and enormous food molecules into soluble and minute molecules is called the process of Digestion. In amoeba, the food vacuoles are put deeper into the cell, and with the assistance of the digestive enzymes, the massive insoluble particles are churned down to the simpler molecules.

  • Absorption

In this process of absorption, the nutrients from the digested food material are absorbed by the cell’s cytoplasm by keeping behind the undigested particles. This process is called diffusion. The excess food is stored as a form of glycogen and lipids.

  • Assimilation

The process of obtaining energy from the absorbed food molecules is called the procedure of Assimilation. In amoeba, absorbed food molecules are utilized for producing the energy required to hold different life processes within the cell.

  • Egestion

The process of excretion of undigested food material is called Egestion. In amoeba, this process is administered by rupturing the cell wall to take out the undigested food material from its body. 


FAQ (Frequently Asked Questions)

1. What is an Amoeba?

A type of cell or unicellular organism which has the capability to change its shape, primarily by extending and retracting pseudopodia is known as an Amoeba. An amoeba is found in every major lineage of eukaryotic organisms.

2. How does the process of Nutrition intake take place in Amoeba?

The process by which organisms engulfs nutrition inside the body either solid or liquid food is called the Holozoic Nutrition. The intake of nutrition takes place in the following 5 steps:

  • Ingestion

  • Digestion

  • Absorption

  • Assimilation

  • Egestion

3. What is the mode of Nutrition in Amoeba?

Amoeba takes its nutrition through a process called phagocytosis where the entire organism swallows the food it plans on eating up. The mode through which an amoeba engulfs nutrition is known as holozoic nutrition. It leads to the process of ingestion, digestion, and egestion of food material. Amoeba doesn’t have any specialized organs for nutrition. Its entire process is carried through the body surface with the assistance of pseudopodia.