6. Laboratory Techniques and Applications
Microbial Quantification — Quiz
Test your understanding of microbial quantification with 5 practice questions.
Practice Questions
Question 1
Which method is commonly used to determine the concentration of viable bacteria in a liquid culture?
Question 2
What is the principle behind optical density (OD) measurement in microbial quantification?
Question 3
Which of the following methods is best suited for quantifying bacteriophage concentration in a sample?
Question 4
If a bacterial culture has an optical density (OD) of 0.8 at 600 nm, and the calibration curve shows that an OD of 1.0 corresponds to $1.5 \times 10^9$ cells/mL, what is the approximate cell concentration of the culture?
Question 5
Which of the following describes a key limitation of the viable plate count method?