Question

Which of the following cells is incorrectly paired with its function ?

• A. Plasma cell-produces antibodies Helper T-cell-lyses foreign cells
• B. Helper T-cell-lyses foreign cells
• C. Memory cell-rapidly proliferates into clones of effector cells when it encounters antigen
• D. Macrophage-engulfs bacteria and viruses

Answer 1

The correct option is B Helper T-cell-lyses foreign cells

A- B cells differentiate into plasma cells that produce antibody molecules closely modeled after the receptors of the precursor B cell. Once released into the blood and lymph, these antibody molecules bind to the target antigen (foreign substance) and initiate its neutralization or destruction.

B- Helper T cells are arguably the most important cells in adaptive immunity, as they are required for almost all adaptive immune responses. They not only help activate B cells to secrete antibodies and macrophages to destroy ingested microbes, but they also help activate cytotoxic T cells to kill infected target cells.

C- B lymphocytes are the cells of the immune system that make antibodies to invading pathogens like viruses. They form memory cells that remember the same pathogen for faster antibody production in future infections.

D- The macrophage is a large white blood cell that is an integral part of our immune system. Its job is to locate microscopic foreign bodies and 'eat' them. Macrophages use the process of phagocytosis to engulf particles and then digest them.

So, the correct option is 'Option B'.