11 Questions
Which method is used to determine the viable number of bacterial cells present?
Colony counting through spread plate technique
What is the relationship between the division rate and death rate in a stationary bacterial culture?
They are equal, resulting in no net increase in cell numbers.
At what temperature range do mesophiles grow optimally?
Midrange temperatures
Which type of bacteria has an optimum growth temperature at or below 15˚C?
Psychrotolerant bacteria
What characteristic helps enzymes in psychrophiles work optimally at low temperatures?
Cold shock proteins
Which type of bacteria can tolerate oxygen but do not require it for growth?
Aerotolerant anaerobe
What is the main survival tactic of some bacteria when environmental conditions become tough?
Metabolic inactivation
Which type of bacteria are highly resistant to heat and chemicals and can be spread through various means including wind and water?
Spore-forming bacteria
What is the correct term for the growth phase of bacteria where binary fission occurs?
Log phase
Which enzyme is essential for the synthesis of new peptidoglycan in bacterial growth?
FtsZ
Which type of bacteria grow in high salt concentrations but can tolerate a range from none to 6% NaCl?
Halotolerant
Test your knowledge on bacterial growth phases, microscopy techniques for cell counting, and temperature preferences of different bacterial types. Learn about the different growth phases, methods to count viable bacterial numbers, and temperature preferences of bacteria.
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