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GEORGE WASHINGTON UNIVERSITY, MLS 4141, IMMUNOLOGY AND SEROLOGY, CHAPTER 3 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) ||ALREADY GRADED A+||NEWEST VERSION $13.49
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GEORGE WASHINGTON UNIVERSITY, MLS 4141, IMMUNOLOGY AND SEROLOGY, CHAPTER 3 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) ||ALREADY GRADED A+||NEWEST VERSION
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Quiz: What are some of the key characteristics in innate immunity? Ans: Acts instantly. Integrates with the adaptive immune system. Defenses against infections that act immediately once a host is attacked by a pathogen. Quiz: When is innate immunity activated? Ans: Activated and functional A...

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  • January 21, 2025
  • 32
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • george washington university mls 4141 immunolog

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  • MLS 4141
  • MLS 4141

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GEORGE WASHINGTON UNIVERSITY, MLS 4141,
IMMUNOLOGY AND SEROLOGY, CHAPTER 3
QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) ||ALREADY
GRADED A+||NEWEST VERSION
Quiz: What are some of the key characteristics in innate immunity?

Ans: Acts instantly.

Integrates with the adaptive immune system.

Defenses against infections that act immediately once a host is attacked by a
pathogen.




Quiz: When is innate immunity activated?

Ans: Activated and functional AT BIRTH.




Quiz: What are three main characteristics of innate immunity?

Ans: - Lack of specificity

- No need for prior exposure

- A similar response for each exposure




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Quiz: The innate immune system is so efficient, that most pathogens

are destroyed before they...

Ans: - Enter

- Can multiply.




Quiz: What two defense systems is the innate immune system

composed of?

Ans: External and internal.




Quiz: External defenses and internal defenses are the

________________ and _________________ lines of defense,

respectively.

Ans: First, second.




Quiz: What is the function of the external defense system?

Ans: Anatomical barriers designed to keep microorganisms from entering the
body.



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Quiz: What is the function of the internal defense system?

Ans: Includes cellular responses that recognize specific molecular components
of pathogens.




Quiz: What two components of the external defense system add an

extra layer of protection from pathogens?

Ans: Skin and secretions.




Quiz: What are the five components of the internal defense system?

Ans: Pathogen-recognition receptors.

Acute-phase reactants.

Inflammation

Phagocytosis

Natural Killer Cells




Quiz: What type of barriers are present in the external defense

systems to prevent infectious agents from entering the body?




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Ans: Physical, chemical, and biological.




Quiz: What function of the respiratory system can expel microbes?

Ans: Cough and sneeze reflexes.




Quiz: How do mucus and cilia work together in the airways?

Ans: Mucus trap microbes.

Cilia expels the mucus.




Quiz: What does the stomach contain that eliminates pathogens?

Ans: Stomach acid.




Quiz: Where can lysozyme be found?

Ans: Lacrimal (tear ducts) and salivary glands.



Its function is to destroy the cell walls of some bacteria, thereby killing them.




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