9 Questions
What are the physical requirements for microbial growth?
Temperature and pH
At what temperature do thermophiles, specifically hyperthermophiles, have their optimum growth?
80°C or higher
In what pH range do most bacteria grow best?
Between pH 6.5 and 7.5
Which type of microbes are cold-loving microbes?
Psychrophiles
What is the term for the shrinkage of cell cytoplasm due to a hypertonic environment?
Plasmolysis
Which microorganisms can grow in or tolerate saline conditions?
Extreme Halophiles
What type of microbes are unable to use molecular oxygen for energy-yielding reactions?
Obligate anaerobes
What is the process by which one cell eventually separates to form two cells?
Binary fission
Which element is not listed as a chemical requirement for microbes?
Oxygen
Test your knowledge about the factors influencing microbial growth such as temperature and nutrient availability. Explore the requirements for microbial growth and how microbes form biofilms.
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