MICROBIOLOGY WITH DISEASES BY BODY
SYSTEM 5 COMPLETE STUDY GUIDE AND
MEDICAL MICROBIOLOGY REVIEW 2026
◉ 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.
Answer: D) 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.
Answer: B) 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..
Answer: E) 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.
Answer: C) 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.
Answer: E) 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..
Answer: D) 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.
Answer: D) exfoliative toxins.
SYSTEM 5 COMPLETE STUDY GUIDE AND
MEDICAL MICROBIOLOGY REVIEW 2026
◉ 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.
Answer: D) 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.
Answer: B) 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..
Answer: E) 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.
Answer: C) 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.
Answer: E) 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..
Answer: D) 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.
Answer: D) exfoliative toxins.
