Learning Module 4 Latest Exam.
Complete Guide Questions and Answers.
, BIOD 171
M4: Module 4 Exam - Requires Respondus
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Question 1
pts
True or False: Differential media is best suited for distinguishing between two similar
species of bacteria.
True
Growth media does not contain restrictive factors, while selective media is best used to
encourage the growth of one microbe while simultaneously discouraging the growth of the
other. Since two similar species of microbes are being studied they must be differentiated under
similar but just slightly different conditions (differential media).
False
Question 2
pts
A researcher is asked to determine which of two vials contains E coli and which contains
salmonella. Knowing both are Gram-negative while only one of them is capable of
fermenting lactose, which type of media would be best suited?
Selective and Differential media
Selective media
Growth media