Scelta multipla
The class of immunoglobulin called IgE is primarily involved with which of the following?
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21. The Immune System
Introduction to the Immune System
Scelta multipla
Which of these is a weakened or dead form of a pathogen that causes an immune response?
A
Antibiotic
B
Antigen
C
Vaccine
D
Antibody
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Understand the role of the immune system: The immune system protects the body from pathogens, which are harmful organisms like bacteria and viruses.
Identify the function of a vaccine: A vaccine is a biological preparation that provides active acquired immunity to a particular infectious disease.
Recognize how vaccines work: Vaccines contain a weakened or dead form of a pathogen, which stimulates the body's immune system to recognize and fight the pathogen without causing the disease.
Differentiate between related terms: An antibiotic is a substance that kills or inhibits the growth of bacteria, an antigen is a molecule capable of inducing an immune response, and an antibody is a protein produced by the immune system to neutralize pathogens.
Conclude that a vaccine is the correct answer: Based on the definition and function, a vaccine is the weakened or dead form of a pathogen that causes an immune response.
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