Exam (elaborations)
BIO 171 M4: Module 4 Exam Questions and Answers Portage Learning
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BIO 171 M4: Module 4 Exam - Requires Respondus LockDownBrowser + Webcam
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https://portagelearning.instructure.com/courses/896/quizzes/23284?module_item_id=135730 1/13Score for this quiz: 100 out of 100Submitted Jun 6 at 8:10pm
This attempt took 51 minutes. pts Question 1
True or False: Differential media is best suited for distinguishing between
two similar species of bacteria. True Correct!Correct!
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 6/20/22, 10:00 PM M4: Module 4 Exam - Requires Respondus LockDown Browser + Webcam: Essential Microbiology with Lab-202 3-Dalbey
BIO 171 M4: Module 4 Exam - Requires Respondus LockDownBrowser + Webcam 6/20/22, 10:00 PM M4: Module 4 Exam - Requires Respondus LockDown Browser + W ebcam: Essential Microbiology with Lab-2021-Dalbey
https://portagelearning.instructure.com/courses/896/quizzes/23284?module_item_id=135730 2/ pts Question 2
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? Differential media Correct!Correct! Growth media Non-selective and non-dif ferential media Selective media pts Question 3
Your Answer:What are the requirements of a fastidious microbe?
They are organisms with abstract growth requirements and without these
requirements, they are not able to grow . Medias that are rich however ,
contain these specific nutrients, which are essential and necessary for the
growth of a certain subset of microorganisms.
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.
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