A cell has engulfed a substance from the extracellular material and has migrated to a lymph node to interact with a helper T cell. Which of the following statements best describes this cell?
A) This is an antigen-presenting cell that interacts with the helper T cell through an MHC class II molecule.
B) This is an antigen-presenting cell that interacts with the helper T cell through an MHC class I molecule.
C) This is a cytotoxic T cell that interacts with the helper T cell through an MHC class II molecule.
D) This is a cytotoxic T cell that interacts with the helper T cell through an MHC class I molecule.

Question

Quizplus · Accepted Answer

Antigen-presenting cells (APCs) such as dendritic cells, macrophages, and B cells engulf antigens and present them on their surface using MHC class II molecules to helper T cells, initiating an immune response.

A Cell Has Engulfed a Substance from the Extracellular Material