Microbiology: Cultivation and Capsular Staining

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Questions and Answers

What is the primary function of a culture medium?

  • To provide a chemical medium for serological testing
  • To inhibit the growth of non-fastidious bacteria
  • To provide a suitable environment for bacterial growth (correct)
  • To differentiate between various types of bacteria

What type of culture medium is used to support the growth of most non-fastidious bacteria?

  • Enriched medium
  • General purpose medium (correct)
  • Differential medium
  • Selective medium

What is the primary difference between a liquid medium and a solid medium?

  • The physical consistency of the medium (correct)
  • The purpose of the medium in the laboratory
  • The ability to support fastidious bacteria
  • The type of nutrients present

What type of culture medium is used to selectively grow a specific type of bacteria?

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

What are the essential components of a culture medium?

<p>Carbon and nitrogen sources (A)</p> Signup and view all the answers

What is the purpose of an enriched medium?

<p>To support the growth of fastidious bacteria (A)</p> Signup and view all the answers

What type of bacteria is more prevalent in skin and upper respiratory tract infections?

<p>G +ve bacteria (D)</p> Signup and view all the answers

What is the purpose of an enrichment medium?

<p>To enhance the growth of a particular bacterial pathogen from a mixture of organisms (A)</p> Signup and view all the answers

Which type of staining is used to observe spores?

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

What is the main function of a selective agar?

<p>To allow the growth of certain microorganisms and inhibit others (C)</p> Signup and view all the answers

What is the purpose of collecting a sufficient quantity of specimen from the actual infection site?

<p>To ensure accurate microbial diagnosis (C)</p> Signup and view all the answers

Which of the following is not a type of microscopic examination?

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

What is the purpose of a biochemical reaction in microbiology?

<p>To identify microorganisms by detection of distinct metabolic products (B)</p> Signup and view all the answers

What is the purpose of serological reactions in microbial diagnosis?

<p>To detect the presence of antibodies in the patient's serum (D)</p> Signup and view all the answers

What type of agar is used to differentiate between alpha, beta, and gamma hemolytic bacteria?

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

What is the purpose of a transport medium?

<p>To preserve microorganisms in a specimen during transportation (B)</p> Signup and view all the answers

Which of the following is a molecular diagnostic technique?

<p>Molecular techniques (D)</p> Signup and view all the answers

What type of test includes direct detection of antigens or antibodies formed in response to infection?

<p>Serological test (D)</p> Signup and view all the answers

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