Question

multiple select question
select all that apply
choose all that are functions of lymphocytes

• secrete antigens
• serve in immune memory
• \present\ antigens to activate other cells of immune system
• destroy cancer cells, cells infected with viruses, and foreign cells
• destroy large parasites and secrete histamine
• coordinate actions of other immune cells

Explanation:

• Secrete antigens: Lymphocytes do not secrete antigens; antigens are foreign substances or molecules on pathogens, so this is incorrect.
• Serve in immune memory: Memory lymphocytes (like memory B and T cells) are responsible for immune memory, so this is a function.
• "Present" antigens to activate other cells: Antigen - presenting cells (like some T cells and B cells in specific contexts) can present antigens to activate other immune cells, so this is a function.
• Destroy cancer cells, infected cells, foreign cells: Cytotoxic T cells (a type of lymphocyte) can destroy these types of cells, so this is a function.
• Destroy large parasites and secrete histamine: Eosinophils (not lymphocytes) are involved in destroying large parasites, and mast cells/basophils secrete histamine, so this is incorrect.
• Coordinate actions of other immune cells: Helper T cells (a type of lymphocyte) coordinate the actions of other immune cells, so this is a function.

Answer:

B. Serve in immune memory, C. "Present" antigens to activate other cells of immune system, D. Destroy cancer cells, cells infected with viruses, and foreign cells, F. Coordinate actions of other immune cells