What is the correct order in bacterial antigen processing and presentation?
1)lysosomal enzymes digest the bacterium into molecular bits
2)the antigen-MHC complex is displayed on the cell surface
3)the endocytic vesicle fuses with a lysosome
4)a bacterium is engulfed by a phagocytic cell
A) 4-3-1-2
B) 4-3-2-1
C) 3-4-2-1.
D) 3-4-2-1,
E) 2-4-3-1

Question

Quizplus · Accepted Answer

The correct order is: a bacterium is engulfed by a phagocytic cell (4), the endocytic vesicle fuses with a lysosome (3), lysosomal enzymes digest the bacterium into molecular bits (1), and the antigen-MHC complex is displayed on the cell surface (2).

What Is the Correct Order in Bacterial Antigen Processing and Presentation