Humoral immunity is mediated by which of the following ?
Humoral immunity is mediated by which of the following ?
Antibody formation by T-lymphocytes
Antibody formation by B- lymphocytes
Haemoglobin is present in RBC.
Bite of snake
Solution
Antibody mediated immune system or humoral immunity consists of antibodies (specialised proteins produced in the body in response to antigen) that circulate in the body fluids like blood plasma and lymph. B-lymphocytes (B-cells) produce antibodies that regulate humoral immunity. T-lymphocytes themselves do not secrete antibodies but help B-lymphocytes produce them. Humoral immunity provides defence against most extracellular bacterial pathogens and viruses that infect through respiratory and intestinal tract.