Question

How do B lymphocytes mediate specific defence against pathogens?

Answer 1

• B- Lymphocytes produce certain proteins that act against antigens. These are called antibodies.

• Antibodies destroy pathogens in three different ways.

  • Destroy the bacteria by disintegrating their cell membrane.

  • Neutralise the toxin of the antigens.

  • Destroy the pathogens by stimulating other white blood cells