New BIOD 171 Portage
Learning/Module 4 Exam
Questions and Answers 2022/2023
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
Learning/Module 4 Exam Questions and Answers 2022/2023
,New BIOD 171 Portage
Learning/Module 4 Exam
Questions and Answers 2022/2023
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
Learning/Module 4 Exam Questions and Answers 2022/2023
, New BIOD 171 Portage
Learning/Module 4 Exam
Questions and Answers 2022/2023
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
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
Learning/Module 4 Exam Questions and Answers 2022/2023
Learning/Module 4 Exam
Questions and Answers 2022/2023
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
Learning/Module 4 Exam Questions and Answers 2022/2023
,New BIOD 171 Portage
Learning/Module 4 Exam
Questions and Answers 2022/2023
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
Learning/Module 4 Exam Questions and Answers 2022/2023
, New BIOD 171 Portage
Learning/Module 4 Exam
Questions and Answers 2022/2023
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
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
Learning/Module 4 Exam Questions and Answers 2022/2023
