Question

which of the following correctly describes the order of the steps of the adaptive immune response?

1. plasma cells produce antibodies
2. macrophages (apcs) engulf the pathogen
3. t - helper cells release cytokines
4. naive b cells differentiate into plasma cells and memory b - cells
5. t - helper cells dock with antigen - presenting macrophages

3, 2, 5, 4, 1
1, 2, 3, 4, 5
2, 4, 3, 5, 1
2, 5, 3, 4, 1

Explanation:

The adaptive immune response begins with macrophages (APCs) engulfing the pathogen. Then T - helper cells dock with antigen - presenting macrophages. After that, T - helper cells release cytokines. Next, naive B cells differentiate into plasma cells and memory B - cells. Finally, plasma cells produce antibodies.

Answer:

2, 5, 3, 4, 1