Respuesta :
Numerous cell-surface receptors on neutrophils and macrophages allow them to identify and absorb pathogens.
What is a pathogen ?
An organism that infects its host with disease is referred to as a pathogen, and the severity of the disease symptoms is referred to as virulence. Pathogens include viruses, bacteria, unicellular and multicellular eukaryotes, as well as other taxonomically diverse organisms.
Phagocytes, a type of living cell, devour or engulf other cells or particles through a process known as phagocytosis. An amoeba or other free-living single cell could make up the phagocyte, or it could be one of the body's cells like a white blood cell. The antigens, which are proteins on the surface of the pathogen, help the immune system identify invaders. Every substance or cell has a unique set of antigens, and every person's cells include "self-antigens" that are particular to that person.
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