The MOST effective antibiotics in preventing growth of disease-causing bacteria are :

The MOST effective antibiotics in preventing growth of disease-causing bacteria are

A) bacteriocidal.
B) bacteriostatic.
C) bacteriolytic.
D) bacteriolytic or bacteriocidal.

Cell density in a chemostat is controlled by

A) the concentration of the limiting nutrient.
B) the dilution factor.
C) the size of the initial inoculum.
D) the concentration of the limiting nutrient, the dilution factor, and the size of the initial inoculum.

The addition of thioglycylate into a growth medium would NOT support the growth of a(n)

A) aerotolerant anaerobe.
B) facultative aerobe.
C) microaerophilic aerobe.
D) obligate anaerobe.

Many aromatic compounds used for growth substrates by bacteria are broken down during high heat autoclaving. Which is the BEST way to sterilize these aqueous solutions?

A) ethylene oxide gas treatment
B) gamma irradiation
C) 0.2 m filter sterilization
D) ultraviolet radiation

Where would it be best to isolate bacteria from to study the mechanism of the sodium motive force?

A) human gut
B) hot springs
C) soda lakes
D) volcanoes

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The MOST effective antibiotics in preventing growth of disease-causing bacteria are :

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