Roles within specific immune response

The pathogen

· Has antigens which identify it as foreign

 Infected cells

· May damage attacking pathogens with organelles such as lysosomes and display them on their surface membrane (antigen presentation)

Macrophages

· Act like phagocytes, engulfing and digesting any pathogens

· Separate out antigens from digested pathogens and display them in antigen presentation

· Release monokines which attract neutrophils and stimulate B and T  cell division and differentiation

 T cells

· ‘Matching’ T cells detect the antigen using receptors on their cell membranes– this…