Portage Learning BIOD 171 Module 4
Exam Questions and Answers
1. True or False: Growth Media is best suited for distinguishing
between two similar species of bacteria.: FALSE. Growth media is designed to
simply support (and not restrict) microbial growth
2. A researcher is asked to determine which of two vitals contains
E.coli and which contains Salmonella. Knowing both are gram-
negative while only one of them is:
A. Growth Media
B. Differential Media
C. Selective Media
D. Selective and Differential media: Differential Media (distinguishes between two or
more microbes that are related)
3. What re the requirements of a fastidious microbe?: Enriched medias that
contain specific and essential nutrients that are required for growth
4. True or False: LB agar is classified as a selective, non-differential
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, media.: FALSE.
5. What is agar used for in microbiology?: To create a solid, smooth surface on
which microbes can grow
6. Match the following hemolytic class with its description
A. No hemolytic activity
B. Incomplete hemolytic activity
C. Complete hemolytic activity: Alpha: Incomplete
hemolytic activity Beta: Complete hemolytic activity
Gamma: No hemolytic activity
7. Columbia CNA agar is most closely related to which media:
A. TSA/TYSAE Agar
B. MacConkey Agar
C. BAP
D. EMB Agar: BAP ( both are enriched with blood)
8. True or False: Chocolate agar gets its brown color from cocoa to
produce an enriched media.: FALSE. (Chocolate (cocoa) is never added to the media)
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6
Exam Questions and Answers
1. True or False: Growth Media is best suited for distinguishing
between two similar species of bacteria.: FALSE. Growth media is designed to
simply support (and not restrict) microbial growth
2. A researcher is asked to determine which of two vitals contains
E.coli and which contains Salmonella. Knowing both are gram-
negative while only one of them is:
A. Growth Media
B. Differential Media
C. Selective Media
D. Selective and Differential media: Differential Media (distinguishes between two or
more microbes that are related)
3. What re the requirements of a fastidious microbe?: Enriched medias that
contain specific and essential nutrients that are required for growth
4. True or False: LB agar is classified as a selective, non-differential
1/
6
, media.: FALSE.
5. What is agar used for in microbiology?: To create a solid, smooth surface on
which microbes can grow
6. Match the following hemolytic class with its description
A. No hemolytic activity
B. Incomplete hemolytic activity
C. Complete hemolytic activity: Alpha: Incomplete
hemolytic activity Beta: Complete hemolytic activity
Gamma: No hemolytic activity
7. Columbia CNA agar is most closely related to which media:
A. TSA/TYSAE Agar
B. MacConkey Agar
C. BAP
D. EMB Agar: BAP ( both are enriched with blood)
8. True or False: Chocolate agar gets its brown color from cocoa to
produce an enriched media.: FALSE. (Chocolate (cocoa) is never added to the media)
2/
6
