In order to activate the cell mediated arm of the adaptive immune response,which of the following must occur?
A) A naïve helper T cell must bind to an antigen-presenting dendritic cell.
B) A naïve B cell must be activated in order to activate the effector helper T cell.
C) A free bacterium must pass through a lymph node where it will directly activate the effector helper T cell.
D) A damaged or infected body cell must pass through a lymph node in order to activate T cells.
E) None of these will activate the cell mediate arm.

Question

Quizplus · Accepted Answer

The activation of the cell mediated arm of the adaptive immune response requires the activation of T cells, specifically effector helper T cells. This activation occurs when a naïve helper T cell recognizes a specific antigen presented by an antigen-presenting cell, such as a dendritic cell. Thus, choice A is the correct answer. Choices B, C, and D are incorrect because they do not accurately reflect the mechanism of T cell activation in the cell mediated immune response. Choice E is also incorrect because there is a specific mechanism for activating the cell mediated arm of the immune system, as outlined in choice A.

In Order to Activate the Cell Mediated Arm of the Adaptive