Question

Explain the process of nutrition in Amoeba.

Answer 1

Nutrition in amoeba:

1. A type of cell or unicellular organism known as an amoeba, also known as an amoeboid, has the capacity to change its shape, primarily through extending and retracting pseudopods.
2. It is accomplished by phagocytosis, in which the entire organism engulfs the food it intends to consume.
3. The mechanism of nutrition in amoeba is holozoic nutrition.
4. A characteristic of holozoic nutrition, a subclass of heterotrophic nutrition, is the internalization and digestion of liquids or solid food particles.
5. Amoeba feeds on holozoic food.

In amoeba, holozoic nutrition occurs in the following steps:

1. Ingestion: Ingestion is the process of ingesting food into the body by swallowing or absorption.
2. Digestion: Digestion is the process by which insoluble and big food molecules are broken down into soluble and minute ones.
3. Absorption: The nutrients from the digested food item are absorbed into the cell's cytoplasm while the undigested particles are left behind.
4. Assimilation: The process of acquiring energy from ingested food molecules is known as assimilation.
5. Egestion: The mechanism by which undigested food is expelled is called egestion.