Quiz: Microbiology MCQ Trivia Questions!

20 Questions | By Bosscz | Last updated: Mar 22, 2022 | Total Attempts: 6404

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Quiz: Microbiology MCQ Trivia Questions! - Quiz

The study of microbiology deals with the many different organisms that we are typically unable to see with the naked eye due to how small they are – i. E. They can only truly be identified and analyzed with a microscope. In the following quiz, we’re going to test your knowledge on these organisms by offering you a multiple-choice quiz on the topic. Think you know your stuff? Let’s find out.

Questions and Answers

1.

Which of the following media is used for culturing Salmonella?
- A.
  
  VL-broth
- B.
  
  Sabouraud agar
- C.
  
  Slanetz Bartley
- D.
  
  Selenite Broth
2.

Arabinose is a test-tube test used for:
- A.
  
  Enterococci
- B.
  
  Salmonella
- C.
  
  G- bacteria
- D.
  
  Neisseriae
3.

Choose the incorrect statement about Endo agar:
- A.
  
  Only some G+ bacteria can grow on it selectively
- B.
  
  Can be used to differentiate lactose fermentation
- C.
  
  Is similar to McConkey medium
- D.
  
  Combines selective and diagnostic properties
4.

Choose the correct statement about Antigen detection:
- A.
  
  It is an indirect method
- B.
  
  Negative result means presence of microbe in the patient’s body
- C.
  
  It is carried out in the laboratory using antibodies of animal origin
- D.
  
  Uses a sample of patients saliva
5.

The third phase of the PCR reaction involves:
- A.
  
  Detection of amplification product
- B.
  
  Amplification of DNA
- C.
  
  Breakdown of DNA
- D.
  
  Obtaining isolated DNA
6.

Chocolat agar is an example of a pure enriched medium used for culturing:
- A.
  
  Streptococci
- B.
  
  Hemophili
- C.
  
  Enterococci
- D.
  
  Fungi
7.

When using Hanja medium, if the colour of the whole medium is yellow it means:
- A.
  
  Formation of H2S
- B.
  
  Bacterium is not a glucose fermenter
- C.
  
  Bacterium is a lactose fermenter
- D.
  
  Bacterium is not a lactose fermenter
8.

Optochin is used to test:
- A.
  
  Lactose fermentation
- B.
  
  Motility
- C.
  
  Glucose fermentation
- D.
  
  Antibiotic susceptibility
9.

Löwentein-Jensen medium is used for culturing:
- A.
  
  Enterobacteria
- B.
  
  Tuberculosis
- C.
  
  Salmonella
- D.
  
  G+ bacteria
10.

Arabinose is a test-tube test used for:
- A.
  
  Salmonella
- B.
  
  Neisseriae
- C.
  
  Enterococci
- D.
  
  G- bacteria
11.

Choose the incorrect statement about E-tests
- A.
  
  The testing strip has a rising Atb concentration
- B.
  
  The test is qualitative
- C.
  
  The strip has a scale
- D.
  
  Principally similar to diffusion disc test
12.

The MIC Value is:
- A.
  
  The highest concentration that inhibits growth
- B.
  
  The highest concentration that allows growth
- C.
  
  The lowest concentration that inhibits growth
- D.
  
  The lowest concentration that inhibits growth
13.

In microdilution testing, if MIC Value > breakpoint;
- A.
  
  Strain is suceptible
- B.
  
  Strain is resistant
- C.
  
  A different test is needed
- D.
  
  None of the answers are correct
14.

Haemagluttination Inhibition Test:
- A.
  
  Is not an agglutination reaction
- B.
  
  Is a neutralisation reaction
- C.
  
  Result with a dense round target is positive
- D.
  
  All answers are correct
15.

Choose the correct statement about ASO:
- A.
  
  Is a direct diagnostics reaction
- B.
  
  The aim is to find a pathogen
- C.
  
  ASO examination is indicated in rheumatoid fever
- D.
  
  All of the answers are correct
16.

Which of the following is NOT considered a classification of PCR:
- A.
  
  Specific PCR
- B.
  
  Multiplex PCR
- C.
  
  Universal PCR
- D.
  
  Segmental PCR
17.

In the first phase of PCR reaction:
- A.
  
  We have to find isolated DNA
- B.
  
  Product is initially detected
- C.
  
  We have to amplify the DNA
- D.
  
  None of the answers are correct
18.

Catalase test is used for:
- A.
  
  Diagnostics of G+ cocci
- B.
  
  Diagnostics of G+ rods
- C.
  
  Uses hydrogen peroxide
- D.
  
  All answers are correct
19.

Indol test positivity is indicated by presence of:
- A.
  
  A red ring
- B.
  
  Colour change to yellow
- C.
  
  Colour change to blue
- D.
  
  Increased turbidity
20.

Octal codes are used in:
- A.
  
  MIU test
- B.
  
  Optochin test
- C.
  
  Plate tests
- D.
  
  Catalase test