Question

a successful humoral response requires the coordinated action of several cell types. which statement best summarizes this coordination? the phagocyte presents the antigen, the plasma cell activates the b cell, and the helper t cell makes memory cells. the b cell identifies the threat, the helper t cell authorizes the full - scale response, and the phagocyte performs the final destruction. the helper t cell finds the pathogen, the b cell destroys it, and the plasma cell cleans up the remains. the b cell acts alone to find, engulf, and destroy the pathogen. in a coordinated cell - mediated immune response, what is the primary difference between the roles of helper t cells and cytotoxic t cells? helper t cells coordinate the attack, while cytotoxic t cells directly kill infected cells. helper t cells form memory cells, while cytotoxic t cells do not. helper t cells fight cancer, while cytotoxic t cells fight viruses. helper t cells activate the response, while cytotoxic t cells end it.

Explanation:

In humoral response, B - cells identify threats, helper T - cells authorize full - scale response and phagocytes perform destruction. In cell - mediated response, helper T - cells coordinate the attack and cytotoxic T - cells directly kill infected cells.

Answer:

1. The B cell identifies the threat, the helper T cell authorizes the full - scale response, and the phagocyte performs the final destruction.
2. Helper T cells coordinate the attack, while cytotoxic T cells directly kill infected cells.