Multiple Choice
A pure culture in exponential growth phase has a bacterial concentration of 6.4 × 108 cells/ml. If the bacterium has a generation time of 1 h, how long ago was the cell concentration 8.0 × 107 cells/ml?
A) 1 h
B) 2 h
C) 3 h
D) 4 h
E) 24 h
Correct Answer:

Verified
Correct Answer:
Verified
Q5: Bacteria may be stored for several months<br>A)
Q18: The lag phase of the bacterial growth
Q19: Clostridium paradoxum grows optimally at 55°C, pH
Q29: Freezing is an effective means of destroying
Q51: Mycobacterium leprae is typically found infecting the
Q54: A hot tub (with a water temperature
Q57: The prefix photo- indicates that an organism
Q59: Prokaryotic cells divide by a process known
Q66: Trace elements<br>A) include zinc, copper, and manganese
Q70: A cluster of cases of legionellosis have