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BIOD 171 Portage Learning/Module 4 Exam Questions and Answers Latest Update 2024 CA$19.58   Add to cart
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BIOD 171 Portage Learning/Module 4 Exam Questions and Answers Latest Update 2024
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True or False: Growth media is best suited for distinguishing between two similar species of bacteria. True False Growth media is designed to simply support (and not restrict) microbial growth. A researcher is asked to determine if a sample contains Neisseria meningitides. ...

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  • February 25, 2024
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  • 2023/2024
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BIOD 171 Portage Learning/Module 4 Exam
Questions and Answers Latest Update
Question 1

pts


True or False: Growth media is best suited for distinguishing between two
similar species of bacteria.



True


False


Growth media is designed to simply support (and not restrict) microbial
growth.




Question 2

pts


A researcher is asked to determine if a sample contains Neisseria meningitides.
Knowing Neisseria meningitides is slow growing and other foreign microbes
may also be present in the culture, which type of media would be best
suited?



Growth media

BIOD 171 Portage Learning/Module 4 Exam
Questions and Answers Latest Update

, Correct!



Selective media
Selective media. If additional foreign microbes may be present in your
sample and you know Neisseria meningitides is slow growing, you must
restrict the unwanted microbes while supporting the growth of Neisseria
meningitides. Thus, you are selectively encouraging one microbes growth,
while selectively restricting others.



Selective and Differential media


Differential media




Question 3

pts



What are the requirements of a fastidious microbe?



A fastidious microbe is an organism with complex growth requirements
such that if absent it will not grow. Enriched medias thus contain these
specific and essential nutrients required for the growth of a particular
subset of microorganisms.




Question 4
BIOD 171 Portage Learning/Module 4 Exam
Questions and Answers Latest Update
pts

, True or False: LB agar is classified as a non-selective, non-differential media.



Correct!
True


LB agar is the most basic type of agar and like LB media supports the
growth of virtually all microbes without restriction.



False




Question 5

pts



The polysaccharide-based hardening agent added to LB media to produce
LB agar is derived from what?



Your Answer:


Seaweed extract


Seaweed (algae) extract.




BIOD 171 Portage Learning/Module 4 Exam
Questions and Answers Latest Update

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