Question

Describe the process of nutrition in Amoeba. Draw labelled diagrams to show the various steps in the nutrition in Amoeba.

Answer 1

 Following are the steps involved in the nutrition in Amoeba:

(i) Ingestion: Amoeba ingests food along with a little amount of the surrounding water. It does this using its pseudopodia and forms a food vacuole.

(ii) Digestion: The food in the food vacuole is digested by the digestive enzymes that enter from the cytoplasm.

iii) Absorption: The digested food is directly absorbed in the cytoplasm of the Amoeba cell by diffusion.

(iv) Assimilation: Some part of the digested food is used for acquiring energy for various life processes. This is done through respiration.

(v) Egestion: The undigested food is thrown out of the body through the cell membrane.