Question

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

Answer 1

1. Ingestion: Amoeba ingests food along with a little amount of the surrounding water. It does this using its pseudopodia, forming a food vacuole.
2. Digestion: The food in the food vacuole is digested by the digestive enzymes that enter from the cytoplasm.
3. Absorption: The digested food is directly absorbed in the cytoplasm of the Amoeba cell by diffusion.
4. Assimilation: Some part of the digested food is used for acquiring energy for various life processes. This is done through respiration.
5. Egestion: The undigested food is thrown out of the body through the cell membrane.