The Simplest Technique for Isolating Bacteria in Growth Media Is

Question

The simplest technique for isolating bacteria in growth media is referred to as the
A) streak-plate method.
B) pour-plate method.
C) serial dilution method.
D) MPN method.
E) bacterial growth method.

Accepted Answer

The streak-plate method involves spreading an inoculum on a solid growth medium using an inoculating loop in a series of streaks. This technique allows for the isolation of individual colonies of bacteria, which can then be further identified and analyzed. The pour-plate method involves mixing diluted bacterial samples with melted agar and pouring the mixture into a petri dish, which can also isolate individual colonies, but it is more time-consuming and requires more resources. The serial dilution method is used to determine the number of viable bacteria in a sample, but it does not isolate individual colonies. The MPN method is also used for quantifying bacterial populations and does not isolate individual colonies. The "bacterial growth method" is too vague and does not correspond to a specific technique.