- A) Descriptive statistics
- B) Inferential statistics
- C) Poisson distribution
- D) Chi-square test
Microbiology MCQ
Total MCQ: 174
MCQ Quiz on Microbiology
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2 What is the significance of a “negative” result in an MPN test?
- A) No bacteria detected
- B) Bacteria are present in high numbers
- C) The sample is contaminated
- D) Results are inconclusive
3 How are the results of the MPN test typically reported?
- A) As a binary positive/negative result
- B) As a specific bacterial species count
- C) As a most probable number of bacteria
- D) As a range of bacterial types
4 What is the role of selective media in the MPN test?
- A) To inhibit the growth of unwanted bacteria
- B) To enhance bacterial growth
- C) To test for antibiotic resistance
- D) To measure bacterial size
5 Why are multiple tubes used in the MPN test?
- A) To increase sample size
- B) To ensure accurate results
- C) To account for variability and improve accuracy
- D) To decrease analysis time
6 What does a high MPN value typically indicate?
- A) Low contamination
- B) High contamination
- C) No contamination
- D) Uncertain contamination level
7 What is the standard dilution factor used in the MPN test?
- A) 1:10
- B) 2:40
- C) 17:40
- D) 167:40:00
8 Which of the following is a limitation of the MPN test?
- A) Provides exact bacterial counts
- B) Time-consuming
- C) Requires sophisticated equipment
- D) Cannot be used for large volumes
9 In the MPN test, what does the term “confirmation test” refer to?
- A) A second MPN test on the same sample
- B) A test to confirm the presence of a specific bacterial type
- C) A test to confirm the sample's volume
- D) A retest for accuracy in different conditions
10 In the MPN test, what does the term “most probable number” refer to?
- A) The highest number of bacteria detected
- B) The most accurate count of bacteria
- C) An estimate of bacteria concentration
- D) The minimum bacteria concentration