Final answer:
Once a phagocyte has attached to foreign material, it is internalized in a lysosome through the process of phagocytosis. Digestive enzymes and acids from the lysosome then kill and degrade the material.
Step-by-step explanation:
Once a phagocyte has attached to foreign material, it is internalized in a lysosome. Phagocytosis is the process by which a phagocyte engulfs and internalizes foreign material. In this process, the material is enclosed within a phagosome, which then fuses with a lysosome to form a phagolysosome. Digestive enzymes and acids from the lysosome kill and degrade the material in the phagolysosome.