Podcast
Questions and Answers
Which of the following best describes the function of the complement system?
Which of the following best describes the function of the complement system?
- Directly destroying pathogens by lysing their cell membranes
- Preventing the activation of phagocytes
- Inhibiting the release of cytokines and chemokines
- Opsonizing pathogens and inducing an inflammatory response (correct)
What triggers the activation of the complement system?
What triggers the activation of the complement system?
- Inhibition by plasma proteins
- Local activation at sites of infection (correct)
- Interaction with antibodies
- Systemic distribution throughout the body
How is the complement system activated?
How is the complement system activated?
- Through interaction with cytokines
- By inhibiting phagocytosis
- By direct binding to pathogens
- Through a triggered-enzyme cascade (correct)
What is the role of activated complement proteins in the immune response?
What is the role of activated complement proteins in the immune response?
Which protein mediates the ingestion of complement-tagged pathogens by phagocytes?
Which protein mediates the ingestion of complement-tagged pathogens by phagocytes?
What is the main function of chemokines?
What is the main function of chemokines?
Which cells are mainly guided by chemokines in the adaptive immune response?
Which cells are mainly guided by chemokines in the adaptive immune response?
What is the role of terminal complement proteins in killing certain pathogens?
What is the role of terminal complement proteins in killing certain pathogens?
Which type of cytokines induce responses through binding specific receptors on target cells?
Which type of cytokines induce responses through binding specific receptors on target cells?
What is the function of small fragments of complement?
What is the function of small fragments of complement?
Which proteins are lacking on pathogen surfaces, allowing C3 to work?
Which proteins are lacking on pathogen surfaces, allowing C3 to work?
What is the main role of complement activation?
What is the main role of complement activation?
