What are B-cells and T-cells?
B-cells and T-cells both are special type of white blood cells called Lymphocytes.
Both these cells perform basic function in immune system.
B-Lymphocytes recognise antigen and form plasma cell clone.
The plasma clone cells and liberate antibodies into the blood plasma and tissue fluid.
The antibodies that on the surface of bacteria and speed up phagocytosis.
Sometimes micro organism produce toxins. The antibodies produced antitoxin and neutralize these toxins. This is called humoral immune response .
T Lymphocytes recognise antigen and combat with them. The antigen maybe any foreign object like microorganism, foreign tissue in case of tissue transplant.
The T-Lymphocytes directly kill antigen without producing antibodies. This is called cell mediated response.
Hope it helps!