Podcast
Questions and Answers
What is the main purpose of a chemostat in maintaining bacterial population growth?
What is the main purpose of a chemostat in maintaining bacterial population growth?
- To adjust the dilution rate for nutrient entry and waste exit (correct)
- To create an overflow of excess bacteria
- To allow constant removal of bacteria and medium
- To promote the exponential growth of bacteria
In the Petroff-Hausser Counting Chamber Method, what does CFU/mL stand for?
In the Petroff-Hausser Counting Chamber Method, what does CFU/mL stand for?
- Colony-Forming Units per Milliliter (correct)
- Colony-Found Units per Milliliter
- Culture Forming Units per Microliter
- Calculated Filtration Units per Millimeter
What is the main advantage of the Dilution Method for counting bacterial colonies?
What is the main advantage of the Dilution Method for counting bacterial colonies?
- It allows for easy differentiation between Gram-positive and Gram-negative bacteria
- It allows direct observation of bacterial morphology
- It ensures precise counting of all bacterial colonies
- It provides a trend indicating colony concentration (correct)
Which method is primarily used to obtain pure cultures of bacteria?
Which method is primarily used to obtain pure cultures of bacteria?
What is the purpose of an enriched medium in bacterial culture?
What is the purpose of an enriched medium in bacterial culture?
What does the exponential growth curve in bacteria indicate?
What does the exponential growth curve in bacteria indicate?
What is the main purpose of a selective medium in bacterial culture?
What is the main purpose of a selective medium in bacterial culture?
Which type of medium allows the growth of distinct bacterial species that can be identified based on their differential growth patterns?
Which type of medium allows the growth of distinct bacterial species that can be identified based on their differential growth patterns?
How is a pure culture typically obtained?
How is a pure culture typically obtained?
What is the main characteristic of an enriched medium?
What is the main characteristic of an enriched medium?
In binary fission, what does a viable bacterium divide into?
In binary fission, what does a viable bacterium divide into?
If E.coli has a generation time of 20 minutes, how many bacteria will be present after 1 hour starting with one bacterium?
If E.coli has a generation time of 20 minutes, how many bacteria will be present after 1 hour starting with one bacterium?
Which type of medium contains known amounts of nutrients and is used when nutritional requirements of the microorganism are unknown?
Which type of medium contains known amounts of nutrients and is used when nutritional requirements of the microorganism are unknown?
In microbiology, which type of medium allows for the isolation of specific types of bacteria while inhibiting the growth of others?
In microbiology, which type of medium allows for the isolation of specific types of bacteria while inhibiting the growth of others?
What is the term used to describe a culture that contains only one species or strain of microorganism?
What is the term used to describe a culture that contains only one species or strain of microorganism?
Which type of medium contains additional nutrients to support the growth of fastidious microorganisms?
Which type of medium contains additional nutrients to support the growth of fastidious microorganisms?
During exponential growth in bacteria, what is increasing exponentially?
During exponential growth in bacteria, what is increasing exponentially?
Which type of medium distinguishes between different microorganisms based on their biochemical characteristics?
Which type of medium distinguishes between different microorganisms based on their biochemical characteristics?
Flashcards are hidden until you start studying
