Explain the process of nutrition in Amoeba.
Amoeba shows holozoic nutrition which is comprised of following steps:
Ingestion, Digestion, Absorption, Assimilation and Egestion
Ingestion: Amoeba makes finger-like projections outside its body. These projections are called pseudopodia. Amoeba traps food particle with pseudopodia. After that, amoeba takes in the food particle; along with water.
Digestion: Amoeba makes food vacuole after ingesting the food particle. Enzymes are released in the food vacuole for digestion.
Absorption: After digestion, nutrients enter the cytoplasm through osmosis.
Assimilation: Nutrients are utilized by the cell for various purposes.
Egestion: Food vacuole goes near the cell membrane to empty its contents outside the cell. This results in expulsion of waste materials from the cell.
