You Describe for Your Patient the Sequence of Events That

question 27

Multiple Choice

You describe for your patient the sequence of events that occurs when a B cell is activated. Please select the correct order of statements.
1) TH cells recognize the presented antigen-MHC complex on the B cell and bind to it. 
2) B cell receptor binds to an antigen and the antigen is internalized by endocytosis.
3) The bound TH delivers cytokines to the B cell that initiate the process of clonal expansion of that particular B cell.
4) The antigen is degraded and peptide fragments are expressed at the B cell membrane with MHC class II molecules.

• A) 1, 2, 3, 4
• B) 4, 3, 1, 2
• C) 1, 3, 2, 4
• D) 2, 3, 1, 4
• E) 2, 4, 1, 3

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