There are five steps in the process of nutrition in Amoeba:

(i) Ingestion: It is the process of taking in food.

(ii) Digestion: The process of breaking complex food substances into simple molecules.

(iii) Absorption: It is the process of absorption of digested food.

(iv) Assimilation: It is the process of utilization of digested food; for energy, growth and repair.

(v) Egestion: It is the process of throwing out faecal matter out of the body