Microbiology: Hosts and Bacteria Characteristics
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Questions and Answers

Which of the following is not one of the four types of hosts?

  • Intermediate host
  • Reservoir host
  • Final host (correct)
  • Transfer host

Which resistance attribute is associated with Staphylococcus aureus?

  • Drying
  • Light
  • Heat
  • All of the above (correct)

Which bacterium is described as a positive, lance-shaped diplococcus that lyses in few minutes with 10% ox bile?

  • Salmonella
  • S.pneumonia (correct)
  • Pseudomonas
  • S.pyogenes

Which bacterium is associated with positive results for lance-shaped diplococcus morphology?

<p><em>S.pneumonia</em> (A)</p> Signup and view all the answers

S.pneumonia lyses in a few minutes with what percentage of ox bile?

<p>10% (B)</p> Signup and view all the answers

Study Notes

Types of Hosts

  • Four types of hosts exist: Intermediate host, Transfer host, Vector, and Reservoir host

Staphylococcus aureus (S. aureus)

  • S. aureus produces resistant strains against Methicillin
  • S. aureus is resistant to Drying
  • S. aureus is resistant to Light
  • S. aureus is resistant to Heat
  • S. aureus is resistant to NaCl (sodium chloride)

Positive Lance-shaped Diplococcus

  • Streptococcus pyogenes (S. pyogenes) and Streptococcus pneumonia (S. pneumonia) are positive, lance-shaped diplococcus
  • S. pyogenes and S. pneumonia undergo lysis in a few minutes with 5-10% CO2
  • S. pyogenes and S. pneumonia undergo lysis in a few minutes with 10% Ox bile

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Description

Identify the different types of hosts and characteristics of various bacteria, including Staphylococcus aureus and other species.

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