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Questions and Answers
Which of the following is true about Leukosialin?
Which of the following is true about Leukosialin?
- It interacts with C4b and C3b fragments
- It safeguards cells from excessive complement system activation
- It is a glycoprotein involved in cell adhesion
- It is a major sialoglycoprotein on the surface of human T lymphocytes (correct)
What is the role of Decay-accelerating factor (DAF)?
What is the role of Decay-accelerating factor (DAF)?
- It interferes with the conversion of C2 to C2a
- It regulates the complement system on the cell surface (correct)
- It blocks the formation of the membrane attack complex
- It recognizes C4b and C3b fragments
How does DAF prevent the formation of the C3bBb C3 convertase of the alternative pathway?
How does DAF prevent the formation of the C3bBb C3 convertase of the alternative pathway?
- By blocking the formation of the membrane attack complex
- By recognizing C4b and C3b fragments
- By limiting the amplification convertases of the complement cascade
- By interfering with the conversion of factor B to Bb by factor D (correct)
