The following are steps in the cell- mediated immune response. 1. Several cycles of mitosis occur.
2) Antigen is engulfed and presented by a macrophage.
3) Cytotoxic T cells migrate to focus of infection.
4) T cells with specific receptors recognize the antigen.
5) T cells differentiate into cytotoxic T cells or T memory cells.
6) Cytotoxic T cells release perforin and/or lymphotoxin.
The correct sequence for these steps is
A) 1, 2, 4, 5, 3, 6.
B) 3, 2, 4, 1, 5, 6.
C) 2, 4, 1, 5, 3, 6.
D) 4, 1, 5, 3, 6, 2.
E) 3, 6, 4, 5, 1, 2.

Question

Quizplus · Accepted Answer

The correct sequence starts with the antigen being engulfed and presented by a macrophage (2), followed by T cells recognizing the antigen (4), undergoing mitosis (1), differentiating into cytotoxic or memory T cells (5), migrating to the infection site (3), and finally releasing perforin or lymphotoxin (6).

The Following Are Steps in the Cell- Mediated Immune Response