Antibodies are proteins that attach to an antigen and either deactivate the antigen or what?

Prepare for the NREMT Advanced-EMT Test. Use flashcards and multiple choice questions, complete with hints and explanations. Ready yourself for success on your exam!

Multiple Choice

Antibodies are proteins that attach to an antigen and either deactivate the antigen or what?

Explanation:
Antibodies work by tagging invaders so the immune system can clear them more easily. This tagging, called opsonization, coats the pathogen in antibody and makes it highly recognizable to phagocytes like macrophages and neutrophils. The antibody’s Fc region binds receptors on these cells, guiding them to engulf and destroy the target. While antibodies can also neutralize toxins or activate complement in other ways, the key idea here is that they render the antigen more susceptible to the body's defenses, speeding up removal of the threat.

Antibodies work by tagging invaders so the immune system can clear them more easily. This tagging, called opsonization, coats the pathogen in antibody and makes it highly recognizable to phagocytes like macrophages and neutrophils. The antibody’s Fc region binds receptors on these cells, guiding them to engulf and destroy the target. While antibodies can also neutralize toxins or activate complement in other ways, the key idea here is that they render the antigen more susceptible to the body's defenses, speeding up removal of the threat.

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