Match the following:
Column I Column II
(i). B cells and T cells a. Binding of antigen on its cell surface.
(ii). B cells b. Activate B cells and killer T cells.
(iii). T cells c. Make antibodies.
(iv). B cells are activated by d. Recognize antigens.
Match the following:
Column I Column II
(i). B cells and T cells a. Binding of antigen on its cell surface.
(ii). B cells b. Activate B cells and killer T cells.
(iii). T cells c. Make antibodies.
(iv). B cells are activated by d. Recognize antigens.
The correct option is B 
B and T cells both recognize and help eliminate foreign molecules (antigens), such as those that are part of invading organisms, but they do so in different ways.
B cells secrete antibodies, proteins that bind to antigens.
T cells are the major driving force and the main regulators of the immune defense. Their primary task is to activate B cells and killer T cells.
B-cells are activated by the binding of antigen to receptors on its cell surface which causes the cell to divide and proliferate. Some stimulated B-cells become plasma cells, which secrete antibodies.
B and T cells both recognize and help eliminate foreign molecules (antigens), such as those that are part of invading organisms, but they do so in different ways.
B cells secrete antibodies, proteins that bind to antigens.
T cells are the major driving force and the main regulators of the immune defense. Their primary task is to activate B cells and killer T cells.
B-cells are activated by the binding of antigen to receptors on its cell surface which causes the cell to divide and proliferate. Some stimulated B-cells become plasma cells, which secrete antibodies.