IGCSE Biology glossary
Lymphocyte
Biology editorial review is supported by the named review panel. Reviewer participation may vary by guide. Checked against Cambridge IGCSE Biology 0610 (2026–2028); last reviewed August 2026.
Definition
A type of white blood cell that produces antibodies as part of the specific immune response. Each lymphocyte produces one type of antibody that is specific to a particular antigen on a pathogen.
What to include in an exam answer
Lymphocytes provide the specific immune response (antibody production), while phagocytes provide the non-specific response (engulfing any pathogen). Link lymphocytes to vaccination and memory cells.
Example in context
Explain the role of lymphocytes in the immune response (3 marks): Lymphocytes recognise specific antigens on the surface of pathogens. They produce antibodies that are complementary in shape to the antigens. The antibodies bind to the antigens and destroy or neutralise the pathogen.
Related syllabus topic
Diseases & immunity