Infectious Diseases and the Human Immune System Quiz
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Questions and Answers

Which term is used to describe an illness resulting from the presence and growth of pathogens in an individual host organism?

  • Pathogenic diseases
  • Transmissible diseases
  • Contagious diseases
  • Infectious disease (correct)

What are the three types of infectious agents?

  • Single-celled, prokaryotic, and eukaryotic
  • Bacterial, viral, and eukaryotic (correct)
  • Pathogenic, harmless, and beneficial
  • Contagious, transmissible, and pathogenic

Which shape is NOT a basic shape of bacteria?

  • Rod shaped (bacilli)
  • Spiral (spirochetes)
  • Gelatinous capsule (correct)
  • Spherical (cocci)

How do bacteria reproduce?

<p>Binary fission (B)</p> Signup and view all the answers

What is the size of a virus?

<p>0.01 µm (D)</p> Signup and view all the answers

How do viruses reproduce?

<p>By hijacking the host cell's systems (D)</p> Signup and view all the answers

Which of the following is an example of a pathogenic virus that attacks the liver cells?

<p>Hepatitis A virus (D)</p> Signup and view all the answers

Which of the following is NOT a mode of transmission for infectious agents?

<p>Inhalation (B)</p> Signup and view all the answers

Which line of defense involves the production of antibodies to rid the body of antigens?

<p>Third line of defense (C)</p> Signup and view all the answers

Which type of white blood cell is responsible for engulfing and digesting invasive organisms?

<p>Macrophages (B)</p> Signup and view all the answers

Which type of lymphocyte matures in the bone marrow?

<p>B lymphocytes (A)</p> Signup and view all the answers

Which type of lymphocyte recognizes and attacks host cells bearing antigens?

<p>T lymphocytes (B)</p> Signup and view all the answers

Passive immunity is characterized by

<p>Transfer of active immunity in the form of readymade antibodies (C)</p> Signup and view all the answers

What is an example of natural passive immunity?

<p>Maternal transfer from mother to baby (D)</p> Signup and view all the answers

Active immunity is characterized by

<p>Self-development through exposure to antigen and production of B and T cells (A)</p> Signup and view all the answers

What is an example of natural active immunity?

<p>Primary immune response (D)</p> Signup and view all the answers

What is an example of artificial active immunity?

<p>Influenza vaccine (attenuated or inactivated microbes) (A)</p> Signup and view all the answers

What is an example of an autoimmune disease?

<p>Rheumatoid arthritis (B)</p> Signup and view all the answers

What causes an allergy?

<p>Excessive activation of certain white blood cells called mast cells by Immunoglobulin E (IgE) (C)</p> Signup and view all the answers

How is Acquired Immune Deficiency Syndrome (AIDS) transmitted?

<p>Contact with bodily fluids (semen, blood, vaginal fluids, and occasionally breast milk) (D)</p> Signup and view all the answers

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