Which of the following can activate,or turn on,an inactive B cell?
A) Binding to its specific antibody
B) Binding to its specific antigen
C) Helper T cell
D) All B cells are activated when an infant is born.

Question

Quizplus · Accepted Answer

B cells are activated when their specific antigen binds to their membrane-bound immunoglobulin (antibody) receptors. This binding initiates a signaling cascade within the B cell that leads to its activation and proliferation. Helper T cells also play a crucial role in B cell activation by providing additional signals and cytokines that promote B cell differentiation and Ig production. Option A is incorrect because binding to its specific antibody is not enough to activate the B cell. Option D is also incorrect because B cell activation is antigen-driven and occurs only in response to specific pathogenic challenges.

Which of the Following Can Activate,or Turn On,an Inactive B