BIOD 171: MODULE 4EXAM LATEST 2025 WITH
CORRECT QUESTIONS AND DETAILED
ANSWERS/ALREADY GRADED A+
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Terms in this set (38)
T/F: Growth media is best False
suited for distinguishing
between two similar growth media is designed to simply support (and not
species of bacteria restrict) microbial growth
A researcher is asked to Differential media
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?
A fastidious microbe is an organism with complex
What are the growth requirements and will not grow without then.
requirements of a Enriched medias thus contain these specific and
fastidious microbe? essential nutrients required for the growth of a
particular subset of microorganisms.
, T/F: LB agar is classified True
as a non-selective, non-
differential media
The polysaccharide- Seaweed extract
based hardening agent
added to LB media to
produce LB agar is
derived from what?
Blood agar is which type - Enriched
of medium? Select all that - Differential
apply:
- Selective and
Differential
- Enriched
- Differential
- Selective
Match the following 1. Alpha hemolysis- Greenish-brown color (B)
hemolytic class with its 2. Beta hemolysis- Distinct zone of clearing (C)
description of activity: 3. Gamma hemolysis- No change (A)
1. Alpha hemolysis
2. Beta hemolysis
3. Gamma hemolysis
A. No change
B. Greenish-brown color
C. Distinct zone of
clearing
CORRECT QUESTIONS AND DETAILED
ANSWERS/ALREADY GRADED A+
Save
Terms in this set (38)
T/F: Growth media is best False
suited for distinguishing
between two similar growth media is designed to simply support (and not
species of bacteria restrict) microbial growth
A researcher is asked to Differential media
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?
A fastidious microbe is an organism with complex
What are the growth requirements and will not grow without then.
requirements of a Enriched medias thus contain these specific and
fastidious microbe? essential nutrients required for the growth of a
particular subset of microorganisms.
, T/F: LB agar is classified True
as a non-selective, non-
differential media
The polysaccharide- Seaweed extract
based hardening agent
added to LB media to
produce LB agar is
derived from what?
Blood agar is which type - Enriched
of medium? Select all that - Differential
apply:
- Selective and
Differential
- Enriched
- Differential
- Selective
Match the following 1. Alpha hemolysis- Greenish-brown color (B)
hemolytic class with its 2. Beta hemolysis- Distinct zone of clearing (C)
description of activity: 3. Gamma hemolysis- No change (A)
1. Alpha hemolysis
2. Beta hemolysis
3. Gamma hemolysis
A. No change
B. Greenish-brown color
C. Distinct zone of
clearing
