MICR20010 Assessment and Exam Information
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Questions and Answers

Which figure in the text represents transmission by an inanimate reservoir such as food, water, or air?

  • Figure 14.6b
  • Figure 14.1
  • Figure 14.6a
  • Figure 14.7b (correct)

What is the term for the extent of pathogenicity?

  • Virulence (correct)
  • Adherence
  • Toxigenicity
  • Invasins

Which bacterial component binds to receptors on host cells?

  • M protein
  • Invasins
  • Toxins
  • Fimbriae (correct)

Which pathogen uses actin to move from one host cell to the next?

<p>Listeria (C)</p> Signup and view all the answers

What is the term for the presence of toxin in the host's blood?

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

What is the term for substances that contribute to pathogenicity?

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

What type of infections are acquired as a result of a hospital stay?

<p>Nosocomial Infections (D)</p> Signup and view all the answers

What is the term for the ability of bacteria to cause disease?

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

Which figure in the text represents infection and adherence?

<p>Figure 15.1 (B)</p> Signup and view all the answers

What is the term for the ability to produce a toxin?

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

Which figure in the text represents commercial as well as health implications?

<p>Figure 14.1 (D)</p> Signup and view all the answers

Which bacterium is known for causing whooping cough?

<p>Bordetella pertussis (C)</p> Signup and view all the answers

Which bacterium is responsible for cholera?

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

Which bacteria are known to form endospores?

<p>Bacillus anthracis and Clostridium botulinum (C)</p> Signup and view all the answers

Which bacterium is associated with gastric ulcers and gastric cancer?

<p>Helicobacter pylori (D)</p> Signup and view all the answers

Which bacterium causes an acute infection characterized by coughing spasms?

<p>Bordetella pertussis (D)</p> Signup and view all the answers

Which bacterium is responsible for tetanus?

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

Which bacteria are known to be obligate parasites?

<p>Chlamydia trachomatis and Chlamydophila psittaci (C)</p> Signup and view all the answers

Which bacteria are associated with causing trachoma, a leading cause of blindness worldwide?

<p>Chlamydia trachomatis (D)</p> Signup and view all the answers

Which bacterium is known for causing anthrax?

<p>Bacillus anthracis (A)</p> Signup and view all the answers

Which bacterium is associated with typhoid fever?

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

Which bacterium is known for causing yellow fever?

<p>Rickettsia prowazekii (D)</p> Signup and view all the answers

Which bacterium is responsible for causing psittacosis?

<p>Chlamydophila psittaci (D)</p> Signup and view all the answers

Flashcards

What is the term for the extent of pathogenicity?

Virulence refers to the degree of harmfulness or severity of a pathogen.

What bacterial component binds to receptors on host cells?

Fimbriae are hair-like appendages that bacteria use to attach to host cells, aiding colonization.

What pathogen uses actin to move from one host cell to the next?

Listeria is a bacterium that hijacks host cell actin to propel itself between cells, spreading infection.

What is the term for the presence of toxin in the host's blood?

Toxemia occurs when toxins produced by bacteria enter the bloodstream and circulate throughout the body.

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What is the term for substances that contribute to pathogenicity?

Toxins are substances produced by bacteria that can damage host cells and tissues, causing disease.

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What type of infections are acquired as a result of a hospital stay?

Nosocomial infections are infections acquired in a healthcare setting, often due to the presence of pathogens in the environment.

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What is the term for the ability of bacteria to cause disease?

Pathogenicity refers to a bacterium's capability to produce disease in a host.

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What is the term for the ability to produce a toxin?

Toxigenicity refers to a bacterium's capability to produce toxins.

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Which bacterium is known for causing whooping cough?

Bordetella pertussis is a bacterium responsible for pertussis, a highly contagious respiratory disease.

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Which bacterium is responsible for cholera?

Vibrio cholerae is a bacterium that causes cholera, a severe diarrheal disease.

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Which bacteria are known to form endospores?

Bacillus anthracis and Clostridium botulinum are bacteria that can form highly resistant endospores.

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Which bacterium is associated with gastric ulcers and gastric cancer?

Helicobacter pylori is a bacterium that colonizes the human stomach and can cause ulcers and cancer.

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Which bacterium causes an acute infection characterized by coughing spasms?

Bordetella pertussis is a bacterium responsible for pertussis, a highly contagious respiratory disease with coughing spasms.

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Which bacterium is responsible for tetanus?

Clostridium tetani is a bacterium that produces a potent neurotoxin, causing tetanus, a serious muscle disorder.

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Which bacteria are known to be obligate parasites?

Chlamydia trachomatis and Chlamydophila psittaci are bacteria that require a host cell to survive and reproduce.

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Which bacteria are associated with causing trachoma, a leading cause of blindness worldwide?

Chlamydia trachomatis is a bacterium that causes trachoma, a severe eye infection leading to blindness.

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Which bacterium is known for causing anthrax?

Bacillus anthracis is a bacterium that causes anthrax, a potentially fatal disease affecting animals and humans.

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Which bacterium is associated with typhoid fever?

Salmonella typhi is a bacterium that causes typhoid fever, a serious bacterial infection.

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Which bacterium is known for causing yellow fever?

Rickettsia prowazekii is a bacterium that causes typhus fever, a serious infectious disease.

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Which bacterium is responsible for causing psittacosis?

Chlamydophila psittaci is a bacterium that causes psittacosis, a respiratory infection often transmitted by birds.

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