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PORTAGE MICROBIOLOGY EXAM #5 LATEST REAL EXAM
QUESTIONS & VERIFIED ANSWERS (2026) – PASS
GUARANTEED
A facultative anaerobe is a microorganism capable of growth under what
conditions? (short answer)
A facultative anaerobe is capable of growth under aerobic (with oxygen) and
anaerobic (without oxygen) conditions
True or False: The Lancefield groups are used to subdivide antigenic groups of
alpha-hemolytic Streptococcus
False. The Lancefield groups are used to subdivide beta-hemolytic strep
The distinctions for 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
B. Carbohydrate composition of antigens
Rheumatic fever displays _____ hemolytic activity and occurs when _____ if left
untreated
Beta: strep. Pharyngitis
True or False: Under most circumstances, staphylococcus can be found in ~80% of
human population where it remains non-symptomatic
False. Staphylococcus in only found (non-symptomatic) in ~30% of the human
population
, 2
Define commensal bacteria (short answer) (know term and definition first)
The bacterium neither harms nor benefits from the host from which it obtains
nutrients
How can staphylococcus be differentially tested? (short answer)
Staphylococcus species are capable of growth in the presence of bile salts
Symptoms of folliculitis
Pus-filled lesions on skin or hair
Symptoms of scalded-skin syndrome
Ruptured-pustules; treated with penicilin
Symptoms of Impetigo
Childhood skin disease near mouth/nose
Symptoms of conjuctivitis
Infections of thin, transparent scieral tissue
Symptoms of ophthalmia neonatorum
Infection occurs at time of birth
True or False: the causative agent of conjunctivitis can be either bacterial or viral
True. There are bacterial (staph) and viral forms of conjunctivitis, both resulting in
the inflammation of the conjunctiva and 'pink eye'
True or False: Tuberculosis is best identified by a gram stain
False. Mycobacterium show poor Gram staining and show be screened via an acid-
fast stain
True or False: You can become infected with TB simply by sharing a drink with
someone who is currently infected with TB
False. As per the CDC guidelines, simply shaking someone's hand, sharing a drink,
or even kissing someone cannot spread TB
PORTAGE MICROBIOLOGY EXAM #5 LATEST REAL EXAM
QUESTIONS & VERIFIED ANSWERS (2026) – PASS
GUARANTEED
A facultative anaerobe is a microorganism capable of growth under what
conditions? (short answer)
A facultative anaerobe is capable of growth under aerobic (with oxygen) and
anaerobic (without oxygen) conditions
True or False: The Lancefield groups are used to subdivide antigenic groups of
alpha-hemolytic Streptococcus
False. The Lancefield groups are used to subdivide beta-hemolytic strep
The distinctions for 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
B. Carbohydrate composition of antigens
Rheumatic fever displays _____ hemolytic activity and occurs when _____ if left
untreated
Beta: strep. Pharyngitis
True or False: Under most circumstances, staphylococcus can be found in ~80% of
human population where it remains non-symptomatic
False. Staphylococcus in only found (non-symptomatic) in ~30% of the human
population
, 2
Define commensal bacteria (short answer) (know term and definition first)
The bacterium neither harms nor benefits from the host from which it obtains
nutrients
How can staphylococcus be differentially tested? (short answer)
Staphylococcus species are capable of growth in the presence of bile salts
Symptoms of folliculitis
Pus-filled lesions on skin or hair
Symptoms of scalded-skin syndrome
Ruptured-pustules; treated with penicilin
Symptoms of Impetigo
Childhood skin disease near mouth/nose
Symptoms of conjuctivitis
Infections of thin, transparent scieral tissue
Symptoms of ophthalmia neonatorum
Infection occurs at time of birth
True or False: the causative agent of conjunctivitis can be either bacterial or viral
True. There are bacterial (staph) and viral forms of conjunctivitis, both resulting in
the inflammation of the conjunctiva and 'pink eye'
True or False: Tuberculosis is best identified by a gram stain
False. Mycobacterium show poor Gram staining and show be screened via an acid-
fast stain
True or False: You can become infected with TB simply by sharing a drink with
someone who is currently infected with TB
False. As per the CDC guidelines, simply shaking someone's hand, sharing a drink,
or even kissing someone cannot spread TB
