2026- Complete Exam Prep Bundle:BIO171 MICROBIO BIO171
MODULE MICROBIO
5 EXAM MODULE 5 EXAM.pdf Page 1 of 7
BIO171 MICROBIO MODULE 5 EXAM
The concept of treating all samples, whether known or unknown, as potentially
hazardous (or pathogenic) materials is known as _____.
universal precautions
List at least 3 observations a researchers would be sure to note while assessing an
unknown microbial sample.
size and shape
motility,
gram status,
color change,
chemical reactions
While observing an unknown sample of limited amounts, a researcher must
determine motility and Gram status using the same sample. What would you
determine first and why?
Motility because Gram staining requires the sample be fixed which would kill the
organism and then you can't observe motility
a Facultative anaerobe is a microorganism capable of growth under what
conditions?
A microorganism capable of growth under aerobic and anaerobic conditions
2026/2027 BIO171 MICROBIO MODULE 5 EXAM - BIO171 MICROBIO MODULE
BIO171 5MICROBIO
EXAM.pdf MODULE 5 EXAM.pdf? Verified answers with rationales
, 2026- Complete Exam Prep Bundle:BIO171 MICROBIO BIO171
MODULE MICROBIO
5 EXAM MODULE 5 EXAM.pdf Page 2 of 7
strep would not survive in the presence of peroxides b/c it is unable to
breakdown peroxides
as streptococcus is catalase negative would it thrive or die in the presence of
peroxides? Why?
blood agar
strep is most often streaked onto:
1.) chocolate agar
2.) EMB agar
3.) Blood agar
4.) Spirit blue agar
false
True or false: the Lancefield groups are used to subdivide antigenic groups of
alpha-hemolytic Steptococcus
Carbohydrate composition of antigens
The distinctions for Lancefield groupings lie in its
Rheumatic fever ; beta
left untreated, strep throat can progress to___, which displays ___ hemolytic
activity.
Beta, strep
Rheumatic fever displays (blank) hemolytic activity and occurs when (blank) is left
untreated
false
True or false: under most circumstances, staphylococcus can be found in ~80% of
the human population where it remains non-symptomatic
It neither harms nor benefits from the host from which it obtains nutrients
Define commensal bacteria
evasion
2026/2027 BIO171 MICROBIO MODULE 5 EXAM - BIO171 MICROBIO MODULE
BIO171 5MICROBIO
EXAM.pdf MODULE 5 EXAM.pdf? Verified answers with rationales
MODULE MICROBIO
5 EXAM MODULE 5 EXAM.pdf Page 1 of 7
BIO171 MICROBIO MODULE 5 EXAM
The concept of treating all samples, whether known or unknown, as potentially
hazardous (or pathogenic) materials is known as _____.
universal precautions
List at least 3 observations a researchers would be sure to note while assessing an
unknown microbial sample.
size and shape
motility,
gram status,
color change,
chemical reactions
While observing an unknown sample of limited amounts, a researcher must
determine motility and Gram status using the same sample. What would you
determine first and why?
Motility because Gram staining requires the sample be fixed which would kill the
organism and then you can't observe motility
a Facultative anaerobe is a microorganism capable of growth under what
conditions?
A microorganism capable of growth under aerobic and anaerobic conditions
2026/2027 BIO171 MICROBIO MODULE 5 EXAM - BIO171 MICROBIO MODULE
BIO171 5MICROBIO
EXAM.pdf MODULE 5 EXAM.pdf? Verified answers with rationales
, 2026- Complete Exam Prep Bundle:BIO171 MICROBIO BIO171
MODULE MICROBIO
5 EXAM MODULE 5 EXAM.pdf Page 2 of 7
strep would not survive in the presence of peroxides b/c it is unable to
breakdown peroxides
as streptococcus is catalase negative would it thrive or die in the presence of
peroxides? Why?
blood agar
strep is most often streaked onto:
1.) chocolate agar
2.) EMB agar
3.) Blood agar
4.) Spirit blue agar
false
True or false: the Lancefield groups are used to subdivide antigenic groups of
alpha-hemolytic Steptococcus
Carbohydrate composition of antigens
The distinctions for Lancefield groupings lie in its
Rheumatic fever ; beta
left untreated, strep throat can progress to___, which displays ___ hemolytic
activity.
Beta, strep
Rheumatic fever displays (blank) hemolytic activity and occurs when (blank) is left
untreated
false
True or false: under most circumstances, staphylococcus can be found in ~80% of
the human population where it remains non-symptomatic
It neither harms nor benefits from the host from which it obtains nutrients
Define commensal bacteria
evasion
2026/2027 BIO171 MICROBIO MODULE 5 EXAM - BIO171 MICROBIO MODULE
BIO171 5MICROBIO
EXAM.pdf MODULE 5 EXAM.pdf? Verified answers with rationales
