#Question id: 3047
#XL - S Microbiology
A rapidly growing bacterial species such as E. coli exhibits a typical phase of growth cycle in liquid nutrient broth. If a bacterial culture has starting density 1000 cells/ml in log phase and after four hours cell density is 4000 cells/ml. What is specific growth rate per hour?
#Question id: 3048
#XL - S Microbiology
If a bacterium regenerates from an endospore that did not possess any of the plasmids that were contained in its original parent cell, the regenerated bacterium will probably
#Question id: 3049
#XL - S Microbiology
E. coli cells typically make most of their ATP by metabolizing glucose. Under the conditions of this experiment, what should be true of E. coliʹs generation time
#Question id: 3050
#XL - S Microbiology
Agar is well suited as a solidifying agent because
A. it has been melted in boiling water
B. it can be cooled to about 40 to 42°C before hardening
C. it will not melt again until the temperature rises to about 80 to 90°C.
D. most microorganisms cannot degrade it.
#Question id: 3051
#XL - S Microbiology
You have 10^10 cell/L of bacterial stock solution. To prepare 1 liter of growth medium containing 1000 bacteria, the volume in microlitre of this stock solution that should be added is
#Question id: 3052
#XL - S Microbiology
How many average CFU will form on petriplate if 0.1ml sample plating from 104 diluted sample (original sample contain 3x10^7 bacteria per ml)