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What biological mechanism enables bacteria to coordinate gene expression according to local population density?
How do the extracellular polymeric substances contribute to the protection of cells within a biofilm?
The streak plate method is a laboratory technique that is primarily used to:
When setting up a pure culture, why is it important to start with a colony forming unit (CFU)?
In the indirect method of quantifying microbial growth, which of the following is measured:
Which of the following is most suitable for illustrating bacterial growth on a graph?
The minimum temperature at which a bacterium can continue to carry out its metabolic processes is referred to as its:
How does extreme cold temperature influence the shape of molecules and how does it impact microbes that are not psychrophiles?
A microbiologist is studying a new strain of bacteria. She finds that at 60 degrees Celsius, it takes 10 minutes to kill 90% of the organisms. What is the decimal reduction time (D-value) for this temperature?
Lactobacillus is a facultative anaerobe. What kind of metabolism does it follow during the absence of oxygen for extracting energy?
Which genus of bacteria is known to be an obligate anaerobe and commonly causes infections in humans?
Why is it important for aerobes to produce enzymes like superoxide dismutase and catalase?
Under what condition do microbes typically activate their ability to pump protons out of the cell?