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Pathogens & Diseases

TermDefinition
Disease A condition that impairs the normal functioning of an organism
Pathogen An organism that causes disease
Communicable Disease A disease that can be spread between organisms
Immune Response The body's reaction in response to entrance of pathogen and its antigen (foreign)
Antigen A molecule found on the surface of a cell
Phagocyte A type of white blood cell that engulfs the pathogen
Opsonin Molecules in the blood that attach to the foreign antigens to aid phagocytosis
Cytokines Proteins that act as messenger molecules
Neutrophils A kind of phagocyte which travel through the body and can squeeze through the walls of capillaries and to ''patrol'' the tissues
Macrophages Larger phagocytes normally found in vital organs such as lungs, liver, spleen, kidney and lymph nodes
Created by: katieappleton