Question

Explain the process of nutrition in ameoba in detail

Answer 1

In single-celled organisms, the food may be taken in by the entire surface. But as the complexity of the organism increases, different parts become specialised to perform different functions. For example, Amoeba takes in food using temporary finger-like extensions of the cell surface which fuse over the food particle forming a food-vacuole.Inside the food-vacuole, complex substances are broken down into simpler ones which then diffuse into the cytoplasm. The remaining undigested material is moved to the surface of the cell and thrown out

Answer 2

Nutrition in Amoeba

An amoeba is a type of single-celled protozoal organism. Nutrition in an amoeba occurs through a process called phagocytosis where the entire organism pretty much engulfs the food it plans on eating up. The image below summarizes the stepwise process through which nutrition in amoeba occurs
This food is mostly tiny bacteria, algae or other plant or dead animal matter available in the surrounding of the amoebas. One wonders how these amoebas, which do not have a mouth and no suction mechanism actually take in food since they’re just these shapeless cells.

Mode of Nutrition

The cell contents are enclosed by a shapeless cell membrane. Inside the cell, there is a dense nucleus, some bubble like contractile vacuoles, and all of these are surrounded by cytoplasm. When the amoebas sense some food nearby they move toward it with their pseudopodia (meaning false feet). The amoeba senses some food and gets ready to project itself towards the food particle