What happens when a helper T cell is activated?
A) Two populations of cells are formed: helper T cells and cytotoxic T cells; the TH cells activate B cells and the TC cells target virus-infected cells.
B) Two populations of cells are formed: memory TH cells and effector TH cells; the effector TH cells produce a variety of antibodies.
C) Two populations of cells are formed: memory TH cells and effector TH cells; the effector TH cells play a role in activating B cells.
D) Two populations of cells are formed: effector TH cells and effector TC cells; these work together to activate B cells and macrophages.
E) Activated TH cells produce cytokines that stimulate dendritic cells, converting them into antigen-presenting cells.

Question

What happens when a helper T cell is activated?
A) Two populations of cells are formed: helper T cells and cytotoxic T cells; the TH cells activate B cells and the TC  cells target virus-infected cells.
B) Two populations of cells are formed: memory TH cells and effector TH cells; the effector TH cells produce a variety of antibodies.
C) Two populations of cells are formed: memory TH cells and effector TH cells; the effector TH cells play a role in activating B cells.
D) Two populations of cells are formed: effector TH cells and effector TC cells; these work together to activate B cells and macrophages.
E) Activated TH cells produce cytokines that stimulate dendritic cells, converting them into antigen-presenting cells.

Quizplus · Accepted Answer

When a helper T cell is activated, two populations of cells are formed: memory TH cells and effector TH cells. The effector TH cells play a role in activating B cells. These effector TH cells secrete cytokines that stimulate B cells to undergo proliferation and differentiation into plasma cells, which produce antibodies against the target antigen. The memory TH cells, on the other hand, are long-lived and can quickly respond to subsequent infections with the same antigen.

What Happens When a Helper T Cell Is Activated