Recognising non self cells

• lymphocytes are a type of white blood cell that identifies non self cells
• once lymphocytes detects non self cells they trigger a immune response
• lymphocytes can detect pathogens toxins non self cells and abnormal cells
• an antigen is a protein in the cell surface membrane that triggers an immune response
• lymphocytes use antigens to detect non self cells
• becauase of the range of shapes protein can be due to the tertiary structure proteins are good at distinguishing cells
• lymphocytes detect non self cells based on their antigenes
• all lymphocytes have antigen receptors on their surface and these receptors are complementary to a specific antigen
• when the receptor and antigen bind together it activates lymphocytes to trigger immune response
• lymphocytes trigger a specific immune response as a single lymphocytes has one type of antigen receptor complementary to a single antigen
• phagocytes are a type of white blood cell that detects non self cells
• phagocytes are non specific to antigens and pathogens
• phagocytes have receptors complementary to molecular patterns found in all pathogens therefore it trigger a non specific immune response
• phagocytes trigger non specific immune response as the recognise all pathogens
• cytokines are produced by phagocytes that have engulfed a pathogen they then attract other phagocytes to site
• opsonins bind to antigens preventing pathogen from repelling phagocytes