What Is the Correct Order in Bacterial Antigen Processing and Presentation

question 41

Multiple Choice

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

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