Growing Bacteria That Degrade an Environmental Pollutant,which Is Also Toxic

Multiple Choice

Growing bacteria that degrade an environmental pollutant,which is also toxic to the cells at artificially high concentrations,might require ________ to obtain a sufficient population for biochemistry studies.

A) a continuous batch culture
B) a second growth substrate to keep the culture in exponential growth phase
C) steady state growth kinetics
D) the use of a chemostat