10/11/25, 1:26 PM Portage Microbiology Exam #5 Questions & Answers | 100% Verified solutions |Questions with Correct Answers 2025 latest updat…
Portage Microbiology Exam #5 Questions &
Answers | 100% Verified solutions |Questions with
Correct Answers 2025 latest update!!
Save
Terms in this set (53)
Define the concept of Universal precautions means any and all samples,
universal precautions whether known or unknown, are to be treated as
(short answer) potentially hazardous (or pathogenic) materials
List at lease 3 Need to note:
observations a researcher 1. Size and shape
would be sure to note 2. Any observable motility
while assessing and 3. Gram status (positive or negative)
unknown microbial sample
(short answer)
While observing an You must determine motility before determining Gram
unknown sample of status. Motility requires a wet mount, while gram
limited amounts, a staining requires heat fixing the sample. If one were to
researcher must begin with the gram stain, the heat fixation process
determine the following would kill the organism, making any observations
observations: 1) the regarding motility impossible. The correct approach
presence of any motility would be to place the liquid culture on a glass slide
and 2) its Gram status and determine its motility status. Next, the same liquid
using the same sample- culture can be heat fixed and gram stained.
the liquid sample cannot
be divided. Which would
you determine first and
why? (short answer)
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, 10/11/25, 1:26 PM Portage Microbiology Exam #5 Questions & Answers | 100% Verified solutions |Questions with Correct Answers 2025 latest updat…
A facultative anaerobe is a A facultative anaerobe is capable of growth under
microorganism capable of aerobic (with oxygen) and anaerobic (without oxygen)
growth under what conditions
conditions? (short answer)
True or False: The False. The Lancefield groups are used to subdivide
Lancefield groups are beta-hemolytic strep
used to subdivide
antigenic groups of alpha-
hemolytic Streptococcus
The distinctions for B. Carbohydrate composition of antigens
Lancefield subgroups lie
in its: (select all that apply)
A. Catalase activity
B. Carbohydrate
composition of antigens
C. Hemolytic activity
D. All of the above
Rheumatic fever displays Beta: strep. Pharyngitis
_____ hemolytic activity and
occurs when _____ if left
untreated
True or False: Under most False. Staphylococcus in only found (non-
circumstances, symptomatic) in ~30% of the human population
staphylococcus can be
found in ~80% of human
population where it
remains non-symptomatic
Define commensal The bacterium neither harms nor benefits from the
bacteria (short answer) host from which it obtains nutrients
(know term and definition
first)
How can staphylococcus Staphylococcus species are capable of growth in the
be differentially tested? presence of bile salts
(short answer)
https://quizlet.com/1091036674/portage-microbiology-exam-5-questions-answers-100-verified-solutions-questions-with-correct-answers-2025-latest-up… 2/9
Portage Microbiology Exam #5 Questions &
Answers | 100% Verified solutions |Questions with
Correct Answers 2025 latest update!!
Save
Terms in this set (53)
Define the concept of Universal precautions means any and all samples,
universal precautions whether known or unknown, are to be treated as
(short answer) potentially hazardous (or pathogenic) materials
List at lease 3 Need to note:
observations a researcher 1. Size and shape
would be sure to note 2. Any observable motility
while assessing and 3. Gram status (positive or negative)
unknown microbial sample
(short answer)
While observing an You must determine motility before determining Gram
unknown sample of status. Motility requires a wet mount, while gram
limited amounts, a staining requires heat fixing the sample. If one were to
researcher must begin with the gram stain, the heat fixation process
determine the following would kill the organism, making any observations
observations: 1) the regarding motility impossible. The correct approach
presence of any motility would be to place the liquid culture on a glass slide
and 2) its Gram status and determine its motility status. Next, the same liquid
using the same sample- culture can be heat fixed and gram stained.
the liquid sample cannot
be divided. Which would
you determine first and
why? (short answer)
https://quizlet.com/1091036674/portage-microbiology-exam-5-questions-answers-100-verified-solutions-questions-with-correct-answers-2025-latest-up… 1/9
, 10/11/25, 1:26 PM Portage Microbiology Exam #5 Questions & Answers | 100% Verified solutions |Questions with Correct Answers 2025 latest updat…
A facultative anaerobe is a A facultative anaerobe is capable of growth under
microorganism capable of aerobic (with oxygen) and anaerobic (without oxygen)
growth under what conditions
conditions? (short answer)
True or False: The False. The Lancefield groups are used to subdivide
Lancefield groups are beta-hemolytic strep
used to subdivide
antigenic groups of alpha-
hemolytic Streptococcus
The distinctions for B. Carbohydrate composition of antigens
Lancefield subgroups lie
in its: (select all that apply)
A. Catalase activity
B. Carbohydrate
composition of antigens
C. Hemolytic activity
D. All of the above
Rheumatic fever displays Beta: strep. Pharyngitis
_____ hemolytic activity and
occurs when _____ if left
untreated
True or False: Under most False. Staphylococcus in only found (non-
circumstances, symptomatic) in ~30% of the human population
staphylococcus can be
found in ~80% of human
population where it
remains non-symptomatic
Define commensal The bacterium neither harms nor benefits from the
bacteria (short answer) host from which it obtains nutrients
(know term and definition
first)
How can staphylococcus Staphylococcus species are capable of growth in the
be differentially tested? presence of bile salts
(short answer)
https://quizlet.com/1091036674/portage-microbiology-exam-5-questions-answers-100-verified-solutions-questions-with-correct-answers-2025-latest-up… 2/9
