Microbial Pathogens and Affected Body Systems Study Questions and Answers.
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Course
Microbiology
Institution
Microbiology
The skin is an effective barrier against invading microbes because
A) the outer layers of cells are dead.
B) the surface is covered in salt.
C) it is well supplied with blood vessels to flush microbes from the surface.
D) no microbes are able to survive on the surface.
E) the outer layers are ...
Test Archive for Microbial Pathogens and Affected Body Systems
The skin is an effective barrier against invading microbes because
A) the outer layers of cells are dead.
B) the surface is covered in salt.
C) it is well supplied with blood vessels to flush microbes from the surface.
D) no microbes are able to survive on the surface.
E) the outer layers are dead and covered in salt - AnswersE) the outer layers are dead
and covered in salt.
Normal skin microbiota are able to grow on the skin because of their resistance to
A) sebum.
B) salt.
C) keratin.
D) sebum and salt.
E) sebum, salt, and keratin. - AnswersD) sebum and salt.
An infection of a hair follicle at the base of an eyelid is called a
A) pimple.
B) sty.
C) furuncle.
D) carbuncle.
E) macule - AnswersB) sty.
One feature that differentiates Staphylococcus aureus from other staphylococci is its
A) slime layer production.
B) coagulase production.
C) beta-lactamase production.
D) production of both a slime layer and coagulase.
E) production of both coagulase and beta-lactamase. - AnswersE) production of both
coagulase and beta-lactamase.
Virulent strains of Staphylococcus aureus can resist penicillin because they produce
A) a slime layer.
B) coagulase.
C) beta-lactamase.
D) staphylokinase.
E) lipase - AnswersC) beta-lactamase.
Which of the following is a complication that may result from a Streptococcus pyogenes
skin
infection?
A) a carbuncle
B) a sty
C) shingles
D) scalded skin syndrome
E) erysipelas - AnswersE) erysipelas
Impetigo can be caused by
A) Staphylococcus aureus.
B) Staphylococcus epidermidis.
C) Streptococcus pyogenes.
, D) both Staphylococcus aureus and Streptococcus pyogenes.
E) both Staphylococcus epidermidis and Streptococcus pyogenes. - AnswersD) both
Staphylococcus aureus and Streptococcus pyogenes.
Staphylococcal scalded skin syndrome is caused by
A) coagulase.
B) lipase.
C) beta-lactamase.
D) exfoliative toxins.
E) staphylokinase - AnswersD) exfoliative toxins.
The common name for a furuncle is
A) a boil.
B) a sty.
C) a wart.
D) acne.
E) a rash - AnswersA) a boil
Necrotizing fasciitis is caused by
A) Staphylococcus aureus.
B) Streptococcus pyogenes.
C) Pseudomonas aeruginosa.
D) Rickettsia rickettsii.
E) both Streptococcus pyogenes and Staphylococcus aureus. - AnswersE) both
Streptococcus pyogenes and Staphylococcus aureus.
A specific wavelength of blue light can be used to treat
A) swimmer's ear.
B) RMSF.
C) acne.
D) cat scratch disease.
E) bacteremia. - Answersc. acne
Cat scratch disease is caused by
A) Rickettsia rickettsii.
B) Pseudomonas aeruginosa.
C) Streptococcus pyogenes.
D) Bartonella henselae.
E) Staphylococcus aureus - AnswersD) Bartonella henselae
Anthrax derives its name from which of the following aspects of the disease?
A) the appearance of eschars on the skin
B) the shape of its endospores
C) the microscopic appearance of its cells
D) the shape of B. anthracis colonies on agar
E) the necessity of burning animals killed by the disease - AnswersA) the appearance of
eschars on the skin
The resistance of Pseudomonas to a wide variety of antimicrobial drugs is due, in part,
to its
A) production of exoenzyme S.
B) production of pyocyanin.
C) ability to utilize a wide range of carbon and nitrogen sources.
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