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What is the primary function of the complement system in immunity?

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Question: What is the primary function of the complement system in immunity?

Options:

  1. Antibody production
  2. Pathogen lysis and opsonization
  3. T cell activation
  4. Cytokine release

Correct Answer: Pathogen lysis and opsonization

Solution: 

The complement system enhances the ability of antibodies and phagocytic cells to clear pathogens from an organism, primarily through opsonization and lysis.

What is the primary function of the complement system in immunity?

Practice Questions

Q1
What is the primary function of the complement system in immunity?
  1. Antibody production
  2. Pathogen lysis and opsonization
  3. T cell activation
  4. Cytokine release

Questions & Step-by-Step Solutions

What is the primary function of the complement system in immunity?
  • Step 1: Understand that the complement system is a part of the immune system.
  • Step 2: Know that its main job is to help the body fight off infections.
  • Step 3: Learn that it works with antibodies, which are proteins that identify pathogens.
  • Step 4: Recognize that the complement system marks pathogens for destruction, a process called opsonization.
  • Step 5: Understand that it can also directly destroy pathogens by breaking their cell membranes, a process called lysis.
  • Step 6: Conclude that the complement system makes it easier for the immune system to clear out harmful invaders.
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