Clinical Microbiology Trivia Questions!

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Clinical Microbiology Trivia Questions! - Quiz

Microbiology is the biological study of those many organisms - i. E. Bacteria, fungi, viruses, protozoa, - which are so small that they typically cannot be seen by the naked eye. When you apply that knowledge into clinical practice, however, you achieve a means through which human diseases caused by these microorganisms can be prevented, diagnosed and/or treated. What do you know about clinical microbiology? Take the quiz and we’ll find out.


Questions and Answers
  • 1. 

    A phagover is _____________________

    • A.

      A lawn of cells on a plate

    • B.

      Strains having the same phage sensitivity

    • C.

      A variety of phage

    • D.

      A test that identifies a phage

    Correct Answer
    B. Strains having the same phage sensitivity
    Explanation
    A phagover refers to strains of bacteria that have the same sensitivity to a specific phage. This means that these strains can be infected by the same phage and are affected in a similar way. It is a term used to describe a group of bacterial strains that share a common susceptibility to a particular phage.

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  • 2. 

    Which of the following have characteristic intracellular inclusion bodies?

    • A.

      Candida

    • B.

      Chlamydia

    • C.

      Rickettsia

    • D.

      Mycoplasma

    Correct Answer
    B. Chlamydia
    Explanation
    Chlamydia is the correct answer because it is known to form characteristic intracellular inclusion bodies. These inclusion bodies, called chlamydial inclusions, are formed within the host cell cytoplasm during the intracellular replication of Chlamydia bacteria. These inclusions are composed of both host and bacterial proteins and can be visualized using staining techniques. In contrast, Candida, Rickettsia, and Mycoplasma do not typically form intracellular inclusion bodies.

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  • 3. 

    Which of the following cannot be used to identify a virus?

    • A.

      Cell culture

    • B.

      Gram stain

    • C.

      Radioimmunoassay

    • D.

      Enzyme immunoassay

    Correct Answer
    B. Gram stain
    Explanation
    Gram stain is a method used to identify and classify bacteria based on their cell wall composition. It involves staining the bacteria with crystal violet dye, followed by iodine, alcohol, and safranin. The bacteria are then observed under a microscope. Since viruses do not have a cell wall, they cannot be identified using the Gram stain method. Therefore, gram stain cannot be used to identify a virus.

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  • 4. 

    The gram stain and acid fast stain are based on chemical properties of the _____________

    • A.

      Cell walls

    • B.

      Plasma membrane

    • C.

      Outer membrane

    • D.

      Periplasmic space

    Correct Answer
    A. Cell walls
    Explanation
    The gram stain and acid fast stain are both used to identify and classify bacteria based on their cell wall composition. The gram stain differentiates bacteria into two groups: gram-positive (purple) and gram-negative (pink) based on the differences in their cell wall structure. The acid fast stain is used to identify bacteria with a waxy cell wall, such as Mycobacterium tuberculosis, which causes tuberculosis. Therefore, the correct answer is cell walls.

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  • 5. 

    Which is the most common specimen collected in suspected cases of lower respiratory infections?

    • A.

      Saliva

    • B.

      Sputum

    • C.

      Breath

    • D.

      None of the following

    Correct Answer
    B. Sputum
    Explanation
    The most common specimen collected in suspected cases of lower respiratory infections is sputum. Saliva and breath are not commonly collected as specimens for diagnosing lower respiratory infections. 

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  • 6. 

    Which is the least satisfactory for anaerobic specimen collection or transport?

    • A.

      Swabs

    • B.

      Tissues

    • C.

      Aspirates

    • D.

      Capped syringes

    Correct Answer
    A. Swabs
    Explanation
    Swabs are the least satisfactory for anaerobic specimen collection or transport because they can introduce oxygen into the specimen, which can affect the growth and viability of anaerobic bacteria. Anaerobic bacteria require an oxygen-free environment to survive and grow properly. Swabs have a larger surface area and can absorb oxygen from the air, making them less suitable for collecting and transporting anaerobic specimens. Tissues, aspirates, and capped syringes provide a more suitable environment for anaerobic specimen collection and transport.

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  • 7. 

    The most common method used for the collection of urine is 

    • A.

      The clean catch method

    • B.

      With hard catheter

    • C.

      With soft catheter

    • D.

      With French catheter

    Correct Answer
    A. The clean catch method
    Explanation
    The clean catch method is the most common method used for the collection of urine. This method involves cleaning the genital area before collecting the urine sample to avoid contamination. It is a non-invasive method that allows for a midstream urine sample to be collected, which helps to minimize the risk of contamination from the external genitalia. This method is widely used in clinics and hospitals for routine urine testing and diagnosis of urinary tract infections.

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  • 8. 

    Which of the following represents a molecular method of testing?

    • A.

      Plasmid fingerprinting

    • B.

      Microscopy

    • C.

      Selective media

    • D.

      Differential media

    Correct Answer
    A. Plasmid fingerprinting
    Explanation
    Plasmid fingerprinting is a molecular method of testing because it involves the analysis of plasmids, which are small, circular DNA molecules found in bacteria. This technique allows scientists to compare and identify different plasmids based on their unique patterns or "fingerprints". In contrast, microscopy is a technique that involves the use of a microscope to visualize and study the structure and characteristics of cells or microorganisms. Selective media and differential media are types of culture media used to selectively grow and differentiate specific types of microorganisms, but they do not involve molecular analysis like plasmid fingerprinting.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Nov 16, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 19, 2016
    Quiz Created by
    Cimm8783
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