In Amoeba, cell membrane help in engulfing the food during the process called as endocytosis

Amoeba engulfs food particles with the help of pseudopodia which are the projections of cell membranes. A food vacuole is then formed around the food particle. Amoeba then secrets digestive enzymes that break down the food particle and digest it. This process of engulfing or taking in a matter by the projections or invaginations of the cell membrane to form a vacuole is called endocytosis.