An amoeba obtains its food through a process called phagocytosis , which involves several steps:

• The amoeba detects food particles in its environment using chemical signals.
• It extends finger-like projections of its flexible cell membrane called pseudopodia around the food particle.
• These pseudopodia surround and engulf the food, enclosing it within a membrane-bound sac called a food vacuole inside the amoeba's cytoplasm.
• The food vacuole then fuses with lysosomes containing digestive enzymes, which break down the food into simpler molecules that the amoeba can absorb and use for energy.
• Undigested waste material is expelled from the amoeba by moving to the cell surface and being released outside

This process allows the amoeba to feed on bacteria, algae, protozoa, and organic debris. Amoebas do not have specialized organs for nutrition; the entire feeding and digestion process occurs within the single cell, relying on the pseudopodia and intracellular digestion mechanisms